15-Letter Words Starting with I

Ichthyosaurian

IDENTICALNESS The quality or state of being identical; sameness.

Airport agents see a lot of them

Security requests

*Customs requests Able to receive a soccer pass legally (nonverbal)

Ideographical

IDIOMATICNESS idiomatic

Illegalization

ILLIBERALNESS The state of being illiberal; illiberality.

Illimitable

ILLOGICALNESS illogical

Imaginariness

Child's forte

What prosaic minds lack

Creative thought.

IMITATIVENESS imitative

Immateriality

IMMATERIALIZE To render immaterial or incorporeal.

""IMMEDIATENESS The quality or relations of being immediate in manner, place, or time; exemption from second or interventing causes.""

Immobilization

""The act of immortalizing, or state of being immortalized.""

IMMOVABLENESS Quality of being immovable.

IMMUNOASSAY

Pl. immunodiagnoses (-s z) Diagnosis of disease based on antigen-antibody reactions in the blood serum. Also called serodiagnosis .

Pl. immunodiagnoses (-s z) Diagnosis of disease based on antigen-antibody reactions in the blood serum. Also called serodiagnosis .

Immunological

Agent noun (-or)

Study or science of

Immunotherapy

IMMUTABLENESS immutable

Impalpability

Impassability

Impassibility

IMPASSIVENESS impassive

Impeccability

Inscrutable nature of Humpty Dumpty's vocabulary

The quality of being imperishable: indstructibility.

Impersonality

IMPERSONALIZE

Implacability

Executions made to sit on impalement

Tool is not a transformer of performances

Executions

Implicative

I am to meditate using skill despite suffering weightlessness!

Importunate

Impregnable

Unlikelihoods

Improvability

Like "Whose Line Is It Anyway?"

Like comedy that's performed without a script

I am tentative about a theatrical opening that's unrehearsed

IMPROVISATORI

The quality or state of being inaccessible; inaccessibleness.

State of being not allowable

Cause for suppression of evidence

Inalterable

INANIMATENESS The quality or state of being inanimate.

The quality of being inapplicable; unfitness; inapplicableness.

In an unsuitable way

How a dress code violator is attired

Lack of concentration

Symptom of spring fever.

The quality or state of being incalculable.

INCAPABLENESS The quality or state of being incapable; incapability.

Incapacitation

Utterly.

""INCOMMENSURABLE Not commensurable; having no common measure or standard of comparison; as, quantities are incommensurable when no third quantity can be found that is an aliquot part of both; the side and diagonal of a square are incommensurable with each other; the diameter and circumference of a circle are incommensurable. as, quantities are incommensurable when no third quantity can be found that is an aliquot part of both; the side and diagonal of a square are incommensurable with each other; the diameter and circumference of a circle are incommensurable.""

""Not communicative; not free or apt to impart to others in conversation; reserved; silent; as, the messenger was incommunicative; hence, not disposed to hold fellowship or intercourse with others; exclusive. as, the messenger was incommunicative; hence, not disposed to hold fellowship or intercourse with others; exclusive.""

Being such that comparison is impossible; incommensurable.

A failure to get on together

Mismatch preventing coming together

Antagonistic state of things

Not worth mentioning

Of little moment.

Lacking worth or importance

Without concern, angrily imprisoning knight with Spanish page

On account (of)

As a reward for, with "of"

Getting looked at

Incoordination

Incrementalism

Incrementalist

The quality of being undefeasible.

Indefinable

Restitution

Indeterminacy

Vaguely dine out, finish and leave your tips

A wavering state of mind

Tired men ruined one country, being unable to make decisions

Fuzziness

Indigenization

One little drink secures record likely to include name for being out of control

INDIVIDUALISE individual

Markedly self-reliant

Laissez-faire

Individuality

""INDIVIDUALIZE The mark as an individual, or to distinguish from others by peculiar properties; to invest with individuality.""

Indoctrination

The resolution of endless ambition (wordplay)

The state or quality of being indubitable.

INDUSTRIALISE industrial

Setting up production factories, e.g

Setting up production factories, for example

Ineducability

INEFFABLENESS The quality or state of being ineffable or unutterable; unspeakableness.

Impossible to efface; indelible.

Useless condition

Without efficacy or effect.

Incapable of being eradicated.

They're bound to happen

The quality of being inexcusable; enormity forgiveness.

Inexorability

Unaccountableness

A. So intricate or entangled as to make escape impossible: an inextricable maze; an inextricable web of deceit.

Infallibility

""INFANTILIZE INFANTILE Of or pertaining to infancy, or to an infant; similar to, or characteristic of, an infant; childish; as, infantile behavior. as, infantile behavior.""

Infeasibility

By infinitesimals; in infinitely small quantities; in an infinitesimal degree.

The quality or state of being inflammable; inflammability.

Informational

Informative

Infrastructure

Inheritable

Inhospitality

Start-up processes

Bootstrap routines

Inoperative

In an inquisitorial manner.

Insatiability

INSATIATENESS The state of being insatiate.

The quality or state of being inscrutable; inscrutability.

The quality or state of being inseparable; inseparability.

Insignificance

In a meaningless way

Insociability

Inspirational

Instantaneity

Without delay

At once.

Singles

Institutional

""The view that the sanction of truth is its utility, or that truth is genuine only in so far as it is a valuable instrument.""

Piper, for one

Nathan Milstein or William Kapell.

Tuba player, for example

Means

One of Nelson Riddle's fortes

Forces required for a piece of music

Scorer's concern

Insubordinate

Possible cause for dismissal

Army no-no

Display of disobedience

Your inner racist turned out revolting

Rebel

Intangibility

Integrability

Integrationist

Little calumnies can create reasonable doctrine

One who overrates the importance of the understanding.

Egghead's thing

Genius's power

Give reasonable form to

Use reasoning rather than emotions

Intelligentsia

Lack of moderation

Dissolution

Peter's nine mates stupidly getting drunk (wordplay)

Process of making more extreme

Process of concentration

Getting more extreme, if CIA's muddled in aim

Interanimation

BEHAVIORAL of or pertaining to behavior.

(Of things) that may be swapped over

Like some machine parts

Easy to swap out

CHANGEABLY In a changeable manner.

Like Ivy League games

Like some football games

Adjective for some athletic events

Mutual comparison of corresponding parts.

CORRELATED mutually related.

Intercorrelate

Intercultural

INTERDIGITATE To interweave.

Locking, as of fingers.

""DIVISIONAL That divides; pas, a divisional line; a divisional general; a divisional surgeon of police. as, a divisional line; a divisional general; a divisional surgeon of police.""

FRATERNITY The state or quality of being fraternal or brotherly; brotherhood.

""GENERATION The act of generating or begetting; procreation, as of animals.""

Intergradation

""INDIVIDUAL Not divided, or not to be divided; existing as one entity, or distinct being or object; single; one; as, an individual man, animal, or city. as, an individual man, animal, or city.""

INTERIORIZE to incorporate within oneself.

""LACUSTRINE Found in, or pertaining to, lakes or ponds, or growing in them; as, lacustrine flowers.as, lacustrine flowers.""

Interlineation

Intermediation

""MODULATION The act of modulating, or the state of being modulated; as, the modulation of the voice. as, the modulation of the voice.""

Learning (of values or attitudes etc.) that is incorporated within yourself.

Throughout the world

Word with famous and known

How Olympic teams are made up.

Plural or third person singular

""PAROXYSMAL Of the nature of a paroxysm; characterized or accompanied by paroxysms; as, a paroxysmal pain; paroxysmal temper. as, a paroxysmal pain; paroxysmal temper.""

Interpellation

""Inflected form of PENETRATED Inflected form of PENETRATE To enter into; to make way into the interior of; to effect an entrance into; to pierce; as, light penetrates darkness. as, light penetrates darkness.""

Permeates

Inflected form of PERCEPTUAL Inflected form of PERCEPT something that is perceived

PERMEATING permeate

Interpersonal

""Between phalanges; as, interphalangeal articulations. as, interphalangeal articulations.""

POPULATION The act or process of populating; multiplication of inhabitants.

What oneirocritics give

Columnist's offerings

Acting choices

""PROVINCIAL Of or pertaining to province; constituting a province; as, a provincial government; a provincial dialect. as, a provincial government; a provincial dialect.""

Relating to grilling carried out on genial traitor

Questioning

""In the form of, or by means of, a question; in an interrogative manner.""

Legal questions

Like some class conflicts (wordplay)

Like some debate club meetings

Describing certain athletics

""Stratified among or between other bodies; as, interstratified rocks. as, interstratified rocks.""

Interstratify

Intervalometer

""VISITATION The act of visiting, or the state of being visited; access for inspection or examination.""

Intolerable

Intracellular

Intracerebral

Intramuscular

Intransigeance

Intransigeant

Adjective (-al)

Noun (-tion)

INTRAPRENEUR

Intravascular

INTRICATENESS The state or quality of being intricate; intricacy.

""INTROSPECTION A view of the inside or interior; a looking inward; specifically, the act or process of selfexamination, or inspection of one's own thoughts and feelings; the cognition which the mind has of its own acts and states; selfconsciousness; reflection.""

Invariability

""INVESTIGATION The act of investigating; the process of inquiring into or following up; research; study; inquiry, esp. patient or thorough inquiry or examination; as, the investigations of the philosopher and the mathematician; the investigations of the judge, the moralist. as, the investigations of the philosopher and the mathematician; the investigations of the judge, the moralist.""

Inviolability

INVIOLATENESS inviolate

The quality or state of being involuntary; unwillingness; automatism.

Immunity to harm or damage

IONOSPHERIC

IRASCIBLENESS irascible

IRRATIONALIST

Irrationality