Origin: Latin suffix -al
Nonsensical has 3 different meanings across 1 category:
so unreasonable as to invite derision
"the absurd excuse that the dog ate his homework"
"that's a cockeyed idea"
"ask a nonsensical question and get a nonsensical answer"
"a contribution so small as to be laughable"
"it is ludicrous to call a cottage a mansion"
"a preposterous attempt to turn back the pages of history"
"her conceited assumption of universal interest in her rather dull children was ridiculous"
having no intelligible meaning
"nonsense syllables"
"a nonsensical jumble of words"
Without sense; absurd.