13-Letter Words Starting with I

English word

ICHTHYOFAUNA

Ichthyofauna

Ichthyology

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

Iconographer

Iconography

Exact sameness

""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

ILLOCUTION

Illogical

ILLUSIONIST One given to illusion; a visionary dreamer.

IMAGISTIC

IMMANENTIST

""Incapability of being mixed, or mingled.""

Person associated with (-ist)

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

Of or pertaining to immunology.

""The quality of being impeccable; exemption from sin, error, or offense.""

The state of being impecunious.

Impecunious

Imperceptible.

Flea's alarmed discovery (wordplay)

Impossible to feel

Too slight to be noticed

IMPERCEPTIBLE Not perceptible; not to be apprehended or cognized by the souses; not discernible by the mind; not easily apprehended.

Imperceptive.

They're not right? That's right

IMPERFECTIVE imperfect

The state of being imperfect.

Expansionist

Impermanence

Impertinence

Remorselessness from rogue - account hiding large gift

By implication.

Impolitical

Impossible to carry out

Unable to be done

Not feasible

In an impracticable manner.

Impractical

Imprecise

Improvidence

Inactivation

Inadvertence

Not appreciable; too small to be perceived; incapable of being duly valued or estimated.

INAPPRECIABLE Not appreciable; too small to be perceived; incapable of being duly valued or estimated.

Inarticulate

Incalescence

Light-bulb's offering

White-hot glow

White heat

""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.""

The quality or state of being incapable; incapability.

Notable

Hamstrings

Locking up in vehicle, reacting strangely

Judicial confinement

Imprisonment

Confinement

INCARDINATE

INCARNADINE Fleshcolored; of a carnation or pale red color.

Incendiarism

Serious burnings

INCLINATION

Inclinometer

Inclusive

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.

The quality or state of being incredible; incredibleness.

Incredulity

In an incredulous manner; with incredulity.

Incremental

Putting the blame on

Implicating

The making of someone to appear guilty

Suggesting guilt

Incrustation

Incuriosity

Unconcernedness; incuriosity.

Indehiscence

Independence

Too unusual for words

Impossible to put into words

Beyond expression

How blue Elvis Presley once was

The state or quality of being indeterminate.

Indifference

Not clear

INDISCIPLINE Want of discipline or instruction.

Indiscipline

Indiscretion

Adjective (-able)

INDISSOCIABLE

Having nothing distinctive; common.

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

Incapable of being educated.

In an ineffective manner; without effect; inefficiently; ineffectually.

Without effect; in vain.

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

Inefficient

Inexactitude

Inexactness

Inexpedience

Green; lacking skill

Gina undressed and felt raw

Green, naive

Inexperience

Infectivity

A flowering; the putting forth and unfolding of blossoms.

INFLUENCE A flowing in or upon; influx.

Occurring within a species.

Infrequency

Inhabitancy

In a foolish manner

Innocuous

Inobservance

Inoperculate

In an inorganic manner.

Inosculation

INSCRIPTION The act or process of inscribing.

Inscriptive

Having a diet of ants etc

Like, eg, anteaters

Eating bugs

Too small to worry about

Financing IT is reviewed as very minor

Too small to matter

Insincerity

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

Inspectorate

The office of an inspector.

Naturally.

Instinctual

Providing education

Educative

Instructive

(A) lack

Insurrection

Invulnerable

""INSUSCEPTIBLE Not susceptible; not capable of being moved, affected, or impressed; that can not feel, receive, or admit; as, a limb insusceptible of pain; a heart insusceptible of pity; a mind insusceptible to flattery. as, a limb insusceptible of pain; a heart insusceptible of pity; a mind insusceptible to flattery.""

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.

Brains in order, working at clues

Persons of special enlightenment.

Smart set*

""One who, or that which, sends or conveys intelligence or news; a messenger.""

Intelligence

Intemperance

INTERACTION Intermediate action.

Interactive

""INTERCALATE To insert, as a day or other portion of time, in a calendar.""

""The insertion of a day, or other portion of time, in a calendar.""

Like electrical signals in the body Toyota (nonverbal)

""INTERCEPTION The act of intercepting; as, interception of a letter; interception of the enemy. as, interception of a letter; interception of the enemy.""

Intercession

Interchain

Interchanger

CHANGING change

Among certain regions.

COMMUNAL belonging to the community

COMPARED compare

Intercompare

Interconnect

Interconvert

CORTICAL pertaining to a {cortex=n}

CROPPING crop

Intercross

CULTURAL relating to culture

Plural or third person singular

DICTIONS diction

DISTRICT to divide into localities

ELECTRON an elementary particle

EPIDEMIC a widespread outbreak of a disease

Interference