incoherent

/ˌɪnkəʊˈhɪərənt/adjective

Not clear or logically connected; hard to make sense of.

Example sentence

“His explanation was so incoherent that nobody understood it.”

Describes both speech and speakers: grief, rage, or drink can leave someone incoherent.

Related words

incomeThe money a person receives from working or from investments.inclinedTo lean or tilt something away from its usual upright or level position.incompatibleIn logic, something that follows as a result of a contrary statement.inciteTo stir people up and push them into action.inconspicuousNot standing out or drawing attention; easy to overlook.incisiveQuick, sharp, and direct in judgment or expression.