13-Letter Words Starting with I

English word

ICHTHYOFAUNA

Ichthyofauna

Ichthyology

""One versed in, or who studies, ichthyology.""

Iconographer

Iconography

Idealization

""A character or symbol representing an idea or a thing without expressing the pronunciation of a particular word or words for it, as in the traffic sign commonly used for "no parking" or "parking prohibited." Also called ideograph .""

Ideological

In stupid way, securing degree, as expressed in particular language

Idiomatic

Eccentric; dictionary (sic) (anagram)

Peculiar to the individual

Peculiar or individual

Ignobleness

With loss of face

Shamefully

ILLOCUTION

Illogical

Rimbaud work

2 +15's display of examples of bookish monks' work (wordplay)

Lights

ILLUSIONIST One given to illusion; a visionary dreamer.

Pictures (in a book)

False perceptions about retro art and origin of terrific drawings (wordplay)

Pictures

In a illustrious manner; conspicuously; eminently; famously.

IMMIGRATION The act of immigrating; the passing or coming into a country for the purpose of permanent residence.

Immoderation

IMMORTALISE

Immortality

Immortalizer

IMMORTALIZE To render immortal; to cause to live or exist forever.

Quality of being immovable.

Immunization

Person associated with (-ist)

IMMUNOGEN any substance that produces immunity when introduced into the body.

IMMUNOGEN any substance that produces immunity when introduced into the body.

IMMUNOGEN any substance that produces immunity when introduced into the body.

Of or pertaining to immunology.

Medical specialists - is slumming, too (anagram)

English word

Type of allergy treatment

The state of being impecunious.

Impecunious

They're not right? That's right

Imperious

The quality of being impersonal; want or absence of personality.

IMPERSONAL Not personal; not representing a person; not having personality.

IMPERSONATE To invest with personality; to endow with the form of a living being.

Pretence of being another person

Pretending to be someone else

Pretence of being someone else

They take others off ropes in a storm at sea

They take off more points as boxer finally reels

Impetuosity

Impetuous

Implantation

Impolitical

Factors difficult to assess

They are difficult to assess

They are impossible to assess

Importunate

Importunity

Something not able to happen

What cannot be

""IMPOVERISHER One who, or that which, impoverishes.""

Impoverish

Impregnation

A theory and school of art.

Is he taking off as an artist (wordplay)

He takes off with a Monet, maybe

Ape suit wearer (wordplay)

Imprisonment

Unlikelihood

I unhappily permit poser to accept one's mistakes

The state or quality of being improvable; improvableness.

Improvidence

In a improvident manner.

Jam session activity

Ad lib performance

Ad-libbed bit

See Improvvisatore. Improvvisatore.

English word

Improvisator

Of or pertaining to improvisation or extemporaneous composition.

Inactivation

Wrong trousers cut below hip

Out of place

Out of keeping

Inauguration

""INCANTATION The act or process of using formulas sung or spoken, with occult ceremonies, for the purpose of raising spirits, producing enchantment, or affecting other magical results; enchantment.""

Judicial confinement

Imprisonment

Confinement

INCARDINATE

Serious burnings

INCLINATION

Inclinometer

Incognizance

Revenue accepted but Libs protest - not a burning issue

Fireproof

Incommodity

Out of touch (wordplay)

Unable to be reached

In solitary confinement

Incompatible

Incompetence

Ineptly

Beyond one's imagination

Beyond possibility of thought

Beyond belief

""INCONCEIVABLE Not conceivable; incapable of being conceived by the mind; not explicable by the human intellect, or by any known principles or agencies; incomprehensible; as, it is inconceivable to us how the will acts in producing muscular motion. as, it is inconceivable to us how the will acts in producing muscular motion.""

Incongruence

Incongruent

Incongruity

In an out-of-place way

Inharmoniously

Not consecutive; not in sequence inconsecutively   adv

As a result

Popular party game, unfinished as a result

Thoughtless of others

Cretins with no idea turning rude

Lacking thought for others

Inconsistency.

Variability (of opinion, performance)

Lack of a harmonious uniformity

Inherent self-contradiction

Inconsonance

Not easily noticed

Not attracting attention

Not readily noticeable

Inconstancy

Popular and match fit, beyond dispute

Stolen cabinet is damaged, for sure

Can be in competition, to be sure

""INCONTESTABLE Not contestable; not to be disputed; that cannot be called in question or controverted; incontrovertible; indisputable; as, incontestable evidence, truth, or facts. as, incontestable evidence, truth, or facts.""

Incontinence

""In an incontinent manner; without restraint, or without due restraint; used esp. of the passions or appetites.""

Cause trouble (to)

Cause difficulties for

Trouble in the loo

Inconvenience.

""Not convertible; not capable of being transmuted, changed into, or exchanged for, something else; as, one metal is inconvertible into another; bank notes are sometimes inconvertible into specie. as, one metal is inconvertible into another; bank notes are sometimes inconvertible into specie.""

In an inconvertible manner.

Not convincible; incapable of being convinced.

Including as a part

Fantastic Gran Torino pic is absorbing

""The act of incorporating, or the state of being incorporated.""

""Incorporating or tending to incorporate; as, the incorporative languages (as of the Basques, North American Indians, etc. ) which run a whole phrase into one word. as, the incorporative languages (as of the Basques, North American Indians, etc. ) which run a whole phrase into one word.""

Incorporator

In an incorporeal manner.

The quality of being incorrect; want of conformity to truth or to a standard; inaccuracy; inexactness; as incorrectness may in defect or in redundance. incorrectness may in defect or in redundance.

Incorrigible

Proof against decay or bribery

Honest, and disposed to err in public

Not subject to decay

In an incorruptible manner.

""INCORRUPTION The condition or quality of being incorrupt or incorruptible; absence of, or exemption from, corruption.""

Freedom or exemption from decay or corruption.

In an incredulous manner; with incredulity.

The making of someone to appear guilty

Suggesting guilt

Incrustation

Incuriosity

Unconcernedness; incuriosity.

Indiscretion

It's in the nature of a mild attack

State of being unwell or unfit

Slight illness

Adjective (-able)

INDISSOCIABLE

The act of individuating or state of being individuated; individualization.

Driven to accept ideas without question

Brainwashed? Not I - and with credit in order

Brainwashed

Indoctrinate

""INDOCTRINATE To instruct in the rudiments or principles of learning, or of a branch of learning; to imbue with learning; to instruct in, or imbue with, principles or doctrines; to teach; often followed by in. in.""

Indomethacin

With hard work

Not efficacious; not having power to produce the effect desired; inadequate; incompetent; inefficient; impotent.

""The quality of being inexorable, or unyielding to entreaty.""

Inferiority

Infiltration

Inflammation

Inflationism

Inflationist

A flowering; the putting forth and unfolding of blossoms.

Informality

Relating to knowledge or data

Informative

Informatory

Infotainment

Cleverness, originality

The state or quality of being ingenuous; openness of heart; frankness.

Ingratiation

Ingrownness

The act of swallowing greedily or immoderately; that which is so swallowed.

Inhabitation

Pl. inhomogeneities Lack of homogeneity.

Not homogeneous or uniform inhomogeneity   [ɪnˌhəʊmədʒɪˈniːɪtɪ -ˌhɒm-] n

The quality or state of being inhospitable; inhospitableness; lack of hospitality.

In a foolish manner

The quality of being injurious or hurtful; harmfulness; injury.

Innocuous

Inobservance

Inoffensive

Inoperculate

Not opportunely; unseasonably; inconveniently.

In an inorganic manner.

Inosculation

""Relating to inquiry or inquisition; inquisitorial; also, of or pertaining to, or characteristic of, the Inquisition.""

Searchingly questioning

Prying

Insanitation

INSCRIPTION The act or process of inscribing.

Having a diet of ants etc

Like, eg, anteaters

Eating bugs

Insemination

Gradual change with harmful effect

The quality of being insociable; want of sociability; unsociability.

INSOLUBILIZE

Insolubilize

The quality or state of being insoluble; insolubility

Inspectorate

The office of an inspector.

Iranian plot is strangely stirring

(Of idea) sudden, brilliant

Generating an elevated feeling

Inspissation

Works of art for military bases

Done in a moment

Occurring with no delay

On-the-spot

INSTANTIATE INSTANT a very short time

Instauration

Instillation

Unappealing or monotonous

Impersonal, unappealing

Providing education

Educative

Disobedient in playing outside barn

Refusing to obey authority

Resistant antibodies run amok

Insufflation

Cool three drinks clutching bottle opener? It's dreadful!

""INSUPPORTABLE Incapable of being supported or borne; unendurable; insufferable; intolerable; as, insupportable burdens; insupportable pain. as, insupportable burdens; insupportable pain.""

Insurrection

INTELLECTION A mental act or process; especially: (a) The act of understanding; simple apprehension of ideas; intuition. Bentley. (b) A creation of the mind itself. (a) The act of understanding; simple apprehension of ideas; intuition. Bentley. (b) A creation of the mind itself.

Inteneration

Intensional

That's meant and no mistake

INTERACTION Intermediate action.

BEHAVIOR conduct