coherent

1 according to the rules of logic a coherent blueprint to hooking up a home theater system with a minimum of fuss Synonyms analytic (or analytical), logical, consequent, good, rational, reasonable, sensible, sound, valid, well-founded, well-groundedRelated Words a posteriori, a priori, syllogistic; cognitive, empirical (also empiric); defendable, defensible, justifiable, maintainable, supportable, sustainable, tenableNear Antonyms casuistic (or casuistical), eristic (also eristical), fallacious, misleading, sophistic (or sophistical), specious; unarticulated; unscientific; absurd, cockeyed, crazy, daffy, fatuous, half-baked, half-witted, harebrained, insane, loony (also looney), mad, nonsensical, nutty, preposterous, simpleminded, stupid, weak-minded, witless; senseless, thoughtless; uncompelling, unconvincingAntonyms illegitimate, illogical, incoherent, inconsequent, inconsequential, invalid, irrational, unreasonable, unsound, weak

2 capable of being understood the victim of the attack was too distraught to make a coherent statement Synonyms accessible, apprehensible, intelligible, comprehendible, comprehensible, fathomable, graspable, legible, scrutable, understandableRelated Words decipherable; plain, simple, straightforward; articulate, fluent, well-spokenNear Antonyms inarticulate; cryptic, esoteric, mysterious, obscureAntonyms incoherent, incomprehensible, inscrutable, insensible

3 not having or showing any apparent conflict a business venture that is coherent with the company's long-range goals Synonyms accordant, consistent, compatible, concordant, conformable (to), congruent, congruous, consonant, correspondent (with or to), harmonious, nonconflictingRelated Words self-consistent; appropriate, befitting, felicitous, fit, fitting, meet, proper, right, suitableNear Antonyms improper, inapposite, inappropriate, inapt, infelicitous, unsuitableAntonyms conflicting, conflictive, incompatible, incongruous, inconsistent, inharmonious, noncompatible