13-Letter Words Starting with I

To render immaterial or incorporeal.

Imperceptible.

Flea's alarmed discovery (wordplay)

Impossible to feel

Too slight to be noticed

Imperceptive.

Not allowed

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

Calm after suffering a terrible bump

Cool as a cucumber

Keeping calm

Impossible to carry out

Unable to be done

Not feasible

See Improvvisatore. Improvvisatore.

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

Wrong trousers cut below hip

Out of place

Out of keeping

Thoughtless of others

Cretins with no idea turning rude

Lacking thought for others

""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.""

""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.""

Proof against decay or bribery

Honest, and disposed to err in public

Not subject to decay

Too unusual for words

Impossible to put into words

Beyond expression

Tea and dinner-time strangely uncertain

Not precisely fixed

Comically entertained? I'm not sure

Not clear

Industrial

""To make industrial; to develop so that most of the working population is engaged in non-agricultural labor; to develop economically; -- of nations or geographical areas; as, to industrialize underdeveloped nations.as, to industrialize underdeveloped nations.""

Beyond description

Beyond words

A flowering; the putting forth and unfolding of blossoms.

Disobedient in playing outside barn

Refusing to obey authority

Resistant antibodies run amok

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

Interlock like fingers of clasped hands

Wedding between different groups

Union of persons from different groups

Wedlock between persons from different social groups

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

Act or state of intermitting; intermission.

A specialized sensory nerve receptor that receives and responds to stimuli originating from within the body.

OPERABLE {usable=adj}

PARTICLE a very small piece or part

PERMEATE to spread through

INTERPOLATE To renew; to carry on with intermission.

Admitting of interpretation; capable of being interpreted or explained.

Mash or vinaigrette? Say when

Worried, I got nervier at questioning

In the form of a question

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

Refusal to budge

Pigheadedness a sign in recent changes

Stubborn refusal to compromise

Infiltration of the genes of one species into the gene pool of another through repeated backcrossing of an interspecific hybrid with one of its parents.

Given to study of one's inner self

Given to self-examination

Inward-looking

Incapable of being reclaimed.

Gone for ever

Lost forever

Peel lacier bra off, precious!

Without any substitute

Cannot be substituted

Too lively to control

Not willing to be restrained

Not capable of being controlled

Prison rebel is turning reckless ...

*Van Heusen/Cahn classic

Unaccountable or unreliable

Not able to be recovered

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

English word