| a. | 1. | Sticking together; cleaving; as the parts of bodies; solid or fluid. |
| 2. | Composed of mutually dependent parts; making a logical whole; consistent; | |
| 3. | Logically consistent; - applied to persons; | |
| 4. | Suitable or suited; adapted; accordant. | |
| 5. | (Physics, Optics) Of or pertaining to electromagnetic waves that have a constant phase relationship with each other; having identical phase at all points; |
| Adj. | 1. | coherent - marked by an orderly, logical, and aesthetically consistent relation of parts; "a coherent argument" Antonyms: incoherent - without logical or meaningful connection; "a turgid incoherent presentation" |
| 2. | coherent - 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" | |
| 3. | coherent - sticking together; "two coherent sheets"; "tenacious burrs" Synonyms: tenacious |