nonsensical
non‧sen‧si‧cal /nɒnˈsensəkəl, nɒnˈsensɪkəl $ nɑːn-/
adjective
This is a nonsensical argument.
non‧sen‧si‧cal /nɒnˈsensəkəl, nɒnˈsensɪkəl $ nɑːn-/
adjective Word Family: adjective: sensible, insensible, senseless, sensitive ≠ insensitive, sensory, nonsensical, insensate; noun: sense ≠ nonsense, sensibility ≠ insensibility, sensitivity ≠ insensitivity, senselessness, sensitization, sensor; adverb: sensibly, senselessly, sensitively ≠ insensitively; verb: sense, sensitize
ideas, actions, or statements that are nonsensical are not reasonable or sensible: