1. Without logical or meaningful connection
   "a turgid incoherent presentation" 
2. (physics) of waves having no stable definite or stable phase relation 
3. Unable to express yourself clearly or fluently
   "incoherent with grief"
   - tongue-tied

See also: confused, disconnected, disjointed, disordered, fuzzy, garbled, illogical, inarticulate, incoherence, incoherency, incoherently, irrational, scattered, unarticulate, unconnected, unlogical

Antonym: coherent

Encyclopedia: Incoherent

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