incoherent
Definitions
Expressed in an incomprehensible or confusing way; unclear.
Lacking internal consistency or logical connection.
Examples
The witness gave an incoherent account of the accident, making it difficult for the police to piece together what happened.
After staying awake for three days, his speech became completely incoherent and impossible to follow.
Synonyms
unintelligible disjointed rambling muddled inarticulate confused disconnected
Antonyms
coherent articulate lucid logical clear intelligible organized