innocent, a. blameless, guileless, guiltless, impeccable, inoffensive, sinless, artless, inculpable, irreproachable, irreprehensible, inerrable, irresponsible, virtuous, unsophisticated.

inquiring, a. curious, inquisitive.

inquiry, n. question, query, interrogation; research, investigationm scrutiny.

inquisitive, a. inquiring, mousing, curious, intrusive, prying, meddlesome.  Antonyms:  indifferent, unconcerned, uninterested.

insane, a. demented, crazy, mad, deranged, delirious, dementate; paranoiac.  Antonyms:  sane, rational.

insane asylum. bedlam, bethlehem, madhouse, retreat.

insanity, n. dementia, alienation of mind, madness, lunacy, craziness, derangement, frenzy, delirium, mania, hallucination, aberration of mind, bedlamism; paranoia, monomania.  Antonyms:  sanity, rationality, lucidity.  Associated Words:  alienist, alienism.

insatiable, a. unappeasable; voracious, rapacious, omnivorous.

inscrutable, a. incomprehensible, inexplicable, unsearchable.

insect, n.  Associated Words:  entomology, entomologist, entomologic, chrsalis, pupa, cicada, cocoon, credpitaculum, entomophilous, entornophily, entomtaxy, entomotomy, insecticidal, insectifuge, insectile, larva, lepidopterist, larvarium, stridor, stridulate, stridulation, silphology, stridulatory, nymph, horismology, imago.

insect-eaters, n. pl.  Insectivora, Entomophaga.

insect-eating, a. insectivorous, entomophagous.

insect powder. insecticide, pyrethrum, entomologic, chrysalis, pupa, cicada, cocoon, crepitaculum, entomophilous, entomophily, entomotaxy, entomotomy, insecticidal, insectifuge, insectile, larva, lepidopterist, larvarium, stridor, stridulate, stridulation, silphology, stridulatory, nymph, horismology, imago.

insect-eaters, n. pl.  Insectivora, Entomophaga.

insect-eating, a. insectivorous, entomophagous.

insect powder. insecticide, pyrethrum.

insecure, a. risky, unsafe, precarious, rickety, unstable, dangerous.

insecurity, n. unsafely, risk, instability, precariousness.

insensibility, n. unconsciousness, torpor, coma, narcosis, lethargy, numbness, narcoma, insusceptibility, anaesthesia, stupefaction, stupor, carus.

insensible, a. unfeeling, numb, insensate, torpid, unimpressible, unsusceptible, unconscious; imperceptible, gradual, imperceivable.

inseparable, a. indivisible, indissoluble.

insert, v. interpolate, intercalate, interject, ingraft, inosculate.

insertion, n. interjection, interpolation, intercalation, inosculation.

inside, a. internal, inner, interior.

insides, n. pl. entrails; penetralia, recesses.

insight, n. discernment.

insignificance, n. unimportance, pettiness, immateriality, triviality, inanity.

insignificant, n. meaningless; unimportant, immaterial, petty, trivial, paltry.