13-Letter Words Starting with I

Ignobleness

Illiberalism

The state of being illiberal; illiberality.

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

Quality of being immovable.

English word

Immutable

The quality of being impalpable.

""Impossible to pass, cross, or overcome: impassable roads; impassable problems.""

The quality or condition of being impassible; insusceptibility of injury from external things.

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

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.

Imperishable

Not allowed

IMPERMISSIBLE Not permissible.

Calm after suffering a terrible bump

Cool as a cucumber

Keeping calm

In an imperturbable manner; calmly.

Remorselessness from rogue - account hiding large gift

Factors difficult to assess

They are difficult to assess

They are impossible to assess

Something not able to happen

What cannot be

Impossible to carry out

Unable to be done

Not feasible

In an impracticable manner.

Unlikelihood

The state or quality of being improvable; improvableness.

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.

The quality or state of being incapable; incapability.

Revenue accepted but Libs protest - not a burning issue

Fireproof

Incompatible

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.""

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.""

""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.

Incorrigible

Proof against decay or bribery

Honest, and disposed to err in public

Not subject to decay

In an incorruptible manner.

The quality or state of being incredible; incredibleness.

One feeling bad at poorly patient

Tireless debating if ale is drunk

Tireless in pursuit of weight control (wordplay)

Without weariness; without yielding to fatigue; persistently.

Too unusual for words

Impossible to put into words

Beyond expression

How blue Elvis Presley once was

Indigestible

Not clear

Key spies blend in somehow, casing area

Like many an office aide

Vital hip damage straddling fences

In an indispensable manner.

Adjective (-able)

INDISSOCIABLE

Incapable of being educated.

Unspeakable nature

The lack of qualifications (for something)

Impossibility to be avoided or shunned; inevitableness.

Impossible to use up

Tireless

""INEXHAUSTIBLE Incapable of being exhausted, emptied, or used up; unfailing; not to be wasted or spent; as, inexhaustible stores of provisions; an inexhaustible stock of elegant words. as, inexhaustible stores of provisions; an inexhaustible stock of elegant words.""

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

Incapable of being explained; inexplicable.

Beyond description

Beyond words

In an inexpressible manner or degree; unspeakably; unutterably.

Inability to make a mistake

Freedom from error

Never-wrong state

The state of being infeasible; impracticability.

""The quality or state of being inflexible, or not capable of being bent or changed; unyielding stiffness; inflexibleness; rigidity; firmness of will or purpose; unbending pertinacity; steadfastness; resoluteness; unchangeableness; obstinacy.""

INFLUENCE A flowing in or upon; influx.

Infusibility.

Inhabitancy

Inhabitation

Inobservance

Insalubrity

Unending craving

""The state or quality of being insensible; want of sensibility; torpor; unconsciousness; as, the insensibility produced by a fall, or by opiates. as, the insensibility produced by a fall, or by opiates.""

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

INSOLUBILIZE

Insolubilize

The quality or state of being insoluble; insolubility

Instability

Disobedient in playing outside barn

Refusing to obey authority

Resistant antibodies run amok

Taliban is nuts blowing up weak

Lacking solidity

Tenuous

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.""

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.""

The lack of a physical presence

The quality of being integrable.

BEHAVIOR conduct

Plural noun or verb form

Mixing blood lines

Mixing across races

""MEMBRANE a thin, pliable layer of tissue""

OBSERVER one that {observes=v}

OPERABLE {usable=adj}

Admitting of interpretation; capable of being interpreted or explained.

Computer Science A signal to a computer that stops the execution of a running program so that another action can be performed.

Occurring or situated within the cerebrum: an intracerebral hemorrhage.

The quality of being invariable; invariableness; constancy; uniformity.

Invertebrate

Inviability

The quality or state of being invincible; invincibleness.

The quality or state of being inviolable; inviolableness.

The quality or state of being invisible; invisibility.

Irascible

Incapable of being reclaimed.

IRRECLAIMABLE Incapable of being reclaimed.

Gone for ever

Lost forever

""IRRECOVERABLE Not capable of being recovered, regained, or remedied; irreparable; as, an irrecoverable loss, debt, or injury. as, an irrecoverable loss, debt, or injury.""

Peel lacier bra off, precious!

Without any substitute

Cannot be substituted

IRREPLACEABLE

Too lively to control

Not willing to be restrained

Not capable of being controlled

In a manner or to a degree that can not be repressed.

Prison rebel is turning reckless ...

*Van Heusen/Cahn classic

Unaccountable or unreliable

So as not to be responsible.

Not able to be recovered

Ever irritable after programming what purged data may become (wordplay)

In an irretrievable manner.

Proneness to anger

Isoantibody

""A compound, C 12 H 13 N 3 O 2 , used as an antidepressant.""