Antonyms of adj nonsensical

2 senses of nonsensical

Sense 1
absurd, cockeyed, derisory, idiotic, laughable, ludicrous, nonsensical, preposterous, ridiculous -- (incongruous;inviting ridicule; "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")

INDIRECT (VIA foolish) -> wise -- (having or prompted by wisdom or discernment; "a wise leader"; "a wise and perceptive comment")

Sense 2
nonsense (prenominal), nonsensical -- (having no intelligible meaning; "nonsense syllables"; "a nonsensical jumble of words")

INDIRECT (VIA meaningless) -> meaningful -- (having a meaning or purpose; "a meaningful explanation"; "a meaningful discussion"; "a meaningful pause")

Similarity of adj nonsensical

2 senses of nonsensical

Sense 1
absurd, cockeyed, derisory, idiotic, laughable, ludicrous, nonsensical, preposterous, ridiculous -- (incongruous;inviting ridicule; "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")
       => foolish (vs. wise) -- (devoid of good sense or judgment; "foolish remarks"; "a foolish decision")

Sense 2
nonsense (prenominal), nonsensical -- (having no intelligible meaning; "nonsense syllables"; "a nonsensical jumble of words")
       => meaningless (vs. meaningful), nonmeaningful -- (having no meaning or direction or purpose; "a meaningless endeavor"; "a meaningless life"; "a verbose but meaningless explanation")