"of the nature of nonsense, absurd, foolish," 1650s, from nonsense + -ical. Related: Nonsensically.
a nonsensical jumble of words
ask a nonsensical question and get a nonsensical answer
non-resident
non-resistance
non-returnable
non-sectarian
nonsense
nonsensical
non-smoker
non-standard
non-starter
non-stop
nonsuch