incoherent

• POS: Adjective
• HYPHEN: in=co=her=ent

CIDE DICTIONARY

incoherent, a. [Pref. in- not + coherent: cf. F. incohérent.].

•  Not coherent; wanting cohesion; loose; unconnected; physically disconnected; not fixed to each; -- said of material substances.  Woodward.  [1913 Webster]
•  Lacking logical coherence or agreement; incongruous; inconsistent; having no dependence of one part on another; logically disconnected; rambling; -- of speech or discourse.  Bp. Warburton.  [1913 Webster]
•  Exhibiting incoherent{2} speech or thought; -- of people; as, a confused and incoherent accident victim.  [PJC]
•  Lacking harmony or congruity of parts.  [PJC]

OXFORD DICTIONARY

incoherent, adj.
1 (of a person) unable to speak intelligibly.
2 (of speech etc.) lacking logic or consistency.
3 Physics (of waves) having no definite or stable phase relationship.

Derivative

incoherence n. incoherency n. (pl. -ies). incoherently adv.

THESAURUS

incoherent

Greek to one, abnormal, absurd, aleatoric, aleatory, aloof, ambiguous, amorphous, anomalous, apart, asunder, babbling, beyond understanding, bipartite, blobby, blurred, blurry, broad, broken, broken off, chance, chancy, chaotic, chopped-off, choppy, confused, decousu, delirious, detached, dichotomous, disconnected, discontinued, discontinuous, discordant, discrete, disjoined, disjointed, disjunctive, disordered, disproportionate, distinct, divergent, dizzy, episodic, fitful, foggy, fuzzy, gapped, garbled, general, giddy, hazy, herky-jerky, hit-or-miss, ill-defined, illogical, impenetrable, imprecise, in two, inaccurate, inarticulate, inchoate, incognizable, incommensurable, incommensurate, incompatible, incomprehensible, incongruous, inconsequent, inconsistent, inconsonant, indecisive, indefinable, indefinite, indeterminable, indeterminate, indistinct, inexact, inscrutable, insular, intermittent, interrupted, irrational, irreconcilable, irregular, jagged, jerky, jumbled, lax, lightheaded, loose, maundering, mixed up, muddled, nonadherent, nonadhesive, noncoherent, noncohesive, noncontinuous, nonlinear, nonsequential, nonserial, nonspecific, nonuniform, numinous, obscure, off, open, orderless, out of proportion, oxymoronic, paradoxical, parenthetic, partitioned, past comprehension, patchy, rambling, random, ranting, raving, scrambled, scrappy, self-contradictory, separate, shadowed forth, shadowy, shapeless, snatchy, spasmodic, spotty, stochastic, suspended, sweeping, tenuous, tongue-tied, unadhesive, unassociated, unattached, unattended, unclear, uncoherent, uncohesive, unconnected, undefined, undestined, undetermined, unfathomable, unintelligible, unjoined, unknowable, unorganized, unplain, unsearchable, unspecified, unsuccessive, untenacious, vague, veiled, wandering, wild

ROGET THESAURUS

incoherent

Incoherence

N incoherence, nonadhesion, immiscibility, incoherence, looseness, laxity, relaxation, loosening, freedom, disjunction, rope of sand, nonadhesive, immiscible, incoherent, detached, loose, baggy, slack, lax, relaxed, flapping, streaming, disheveled, segregated, like grains of sand unconsolidated &c, uncombined, noncohesive.

Insanity

N insanity, disordered reason, disordered intellect, diseased mind, unsound mind, abnormal mind, derangement, unsoundness, psychosis, neurosis, cognitive disorder, affective disorder, insanity, lunacy, madness, mania, rabies, furor, mental alienation, aberration, paranoia, schizophrenia, dementation, dementia, demency, phrenitis, phrensy, frenzy, raving, incoherence, wandering, delirium, calenture of the brain, delusion, hallucination, lycanthropy, brain storm, vertigo, dizziness, swimming, sunstroke, coup de soleil, siriasis, fanaticism, infatuation, craze, oddity, eccentricity, twist, monomania (caprice), kleptodipsomania, hypochondriasis, melancholia, depression, clinical depression, severe depression, hysteria, amentia, screw loose, tile loose, slate loose, bee in one's bonnet, rats in the upper story, dotage, insane, mad, lunatic, loony, crazy, crazed, aliene, non compos mentis, not right, cracked, touched, bereft of reason, all possessed, unhinged, unsettled in one's mind, insensate, reasonless, beside oneself, demented, daft, phrenzied, frenzied, frenetic, possessed, possessed with a devil, deranged, maddened, moonstruck, shatterpated, mad-brained, scatter brained, shatter brained, crackbrained, touched, tetched, off one's head, maniacal, delirious, lightheaded, incoherent, rambling, doting, wandering, frantic, raving, stark staring mad, stark raving mad, wild-eyed, berserk, delusional, hallucinatory, corybantic, dithyrambic, rabid, giddy, vertiginous, wild, haggard, mazed, flighty, distracted, distraught, depressed, agitated, hyped up, bewildered, mad as a March hare, mad as a hatter, of unsound mind, touched in one's head, wrong in one's head, not right in one's head, not in one's right mind, not right in one's wits, upper story, out of one's mind, out of one's wits, out of one's skull, far gone, out of one's senses, out of one's wits, not in one's right mind, fanatical, infatuated, odd, eccentric, hypped, hyppish, spaced out, imbecile, silly, like one possessed, the mind having lost its balance, the reason under a cloud, tet exaltee, tet montee, ira furor brevis est, omnes stultos insanire.