13-Letter Words Starting with I

Ideological

In a creative way

Creatively

""The state or quality of being immaterial or incorporeal; as, the immateriality of the soul. as, the immateriality of the soul.""

Type of allergy treatment

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

The state of being impecunious.

Impecunious

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

Impermanent

IMPERMISSIBLE Not permissible.

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

In an impertinent manner.

In an imperturbable manner; calmly.

By implication.

Importunate

In a improvident manner.

In an unguarded moment

By accident

Accidentally

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

Inattentive

Ineptly

""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.""

Incongruent

Variability (of opinion, performance)

Lack of a harmonious uniformity

Inherent self-contradiction

""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.""

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

Inconvenience.

In an inconvertible manner.

In an incorporeal manner.

The quality or state of being incredible; incredibleness.

In an incredulous manner; with incredulity.

Incremental

Without weariness; without yielding to fatigue; persistently.

Alone and unaided

How blue Elvis Presley once was

The state or quality of being indeterminate.

In mediocre style

In an indispensable manner.

Incapable of being educated.

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

Without effect; in vain.

Inefficient

The lack of qualifications (for something)

Impossibility to be avoided or shunned; inevitableness.

""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.""

Not <?/<?/pediently; unfitly.

Inexpensive

In an inexpressible manner or degree; unspeakably; unutterably.

The state of being infeasible; impracticability.

By way of inference.

""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.""

In an influential manner.

Informative

Pl. inhomogeneities Lack of homogeneity.

Inoffensive

Not opportunely; unseasonably; inconveniently.

In an inquisitive manner.

Inscriptive

""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.""

Insensitive

""INSENSITIVE Not sensitive; wanting sensation, or wanting acute sensibility.""

Quality of being instantaneous.

Naturally.

Instructive

(A) lack

""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 quality of being integrable.

""Belonging to, or composed of, integuments.""

In a sensible, thoughtful manner

In a sensible manner

Perceptively

In an intemperate manner; immoderately; excessively; without restraint.

Intensional

That's meant and no mistake

Interactive

Interdental

In an interesting manner.

INDUSTRY a group of productive enterprises

Interlinear

""Consisting of, or having the nature of, dialogue; conversational.""

City interment (anagram)

Interracial

Conservative after turning angrier to questioning

Intersexual

To put or insert between other strata.

Intoxicated

Intradermal

Intrathecal

Intravenous

Inventorial

Pertaining to formal inquiries

Making enquiries

Ipsilateral

IRRECLAIMABLE Incapable of being reclaimed.

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

In an irreligious manner.

IRREPLACEABLE

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

So as not to be responsible.

In an irretrievable manner.

Isometrical