- illogical, unlogical - lacking in correct logical relation
Antonyms: logical, dianoetic, discursive, formal, ratiocinative
- confused, disconnected, disjointed, disordered, garbled, illogical, scattered, unconnected - lacking orderly continuity; "a confused set of instructions"; "a confused dream about the end of the world"; "disconnected fragments of a story"; "scattered thoughts"
Antonym: coherent (indirect, via incoherent)