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

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

Antonym: coherent

Encyclopedia: Incoherent