COHERENT
coherent, tenacious
(adjective) sticking together; “two coherent sheets”; “tenacious burrs”
coherent
(adjective) (physics) of waves having a constant phase relation
coherent, consistent, logical, ordered
(adjective) marked by an orderly, logical, and aesthetically consistent relation of parts; “a coherent argument”
coherent, logical, lucid
(adjective) capable of thinking and expressing yourself in a clear and consistent manner; “a lucid thinker”; “she was more coherent than she had been just after the accident”
Source: WordNet® 3.1
Etymology
Adjective
coherent (comparative more coherent, superlative most coherent)
Unified; sticking together; making up a whole.
Orderly, logical and consistent.
Aesthetically ordered.
Having a natural or due agreement of parts; harmonious: a coherent design.
(physics) Of waves having the same direction, wavelength and phase, as light in a laser.
(botany) Attaching or pressing against an organ of the same nature.
(math, of a sheaf) Belonging to a specific class of sheaves having particularly manageable properties closely linked to the geometrical properties of the underlying space.
Antonyms
• incoherent
Source: Wiktionary
Co*her"ent, a. Etym: [L. cohaerens, p. pr. See Cohere.]
1. Sticking together; cleaving; as the parts of bodies; solid or
fluid. Arbuthnot.
2. Composed of mutually dependent parts; making a logical whole;
consistent; as, a coherent plan, argument, or discourse.
3. Logically consistent; -- applied to persons; as, a coherent
thinker. Watts.
4. Suitable or suited; adapted; accordant. [Obs.]
Instruct my daughter how she shall persever, That time and place,
with this deceit so lawful, May prove coherent. Shak.
Source: Webster’s Unabridged Dictionary 1913 Edition