nonsensical

[non-sen-si-kuh l]

(of words or language) having little or no meaning; making little or no sense: A baby's babbling is appealingly nonsensical.

(of behavior, conduct, actions, etc.) foolish, senseless, fatuous, or absurd: His nonsensical behavior was unusual for such a serious person.

objectionable, impudent, insubordinate: I refuse to listen to that nonsensical gossip.

of trifling importance or of little or no use: I've had more than enough of your nonsensical advice!

Origin of nonsensical

Related formsnon·sen·si·cal·ly, adverbnon·sen·si·cal·i·ty, non·sen·si·cal·ness, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

The method in question, they say, is not only unproven but nonsensical.
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The twenthysomethings in the audience cheered at all the nonsensical provocation.
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December 14, 2013
Mold them into fireworks, nonsensical swirls, and random color bursts.
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October 21, 2013
Or is the line just a collection of nonsensical sounds and syllables?
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Amy Zimmerman
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But production values are a minor quibble when looking at a show as nonsensical and inane as this one.
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That is, I really have a notion of why I have collected all the nonsensical things there are.
Alarms and Discursions
G. K. Chesterton
What nonsensical scheme about making me an inspector of this or a collector of that?
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Charles James Lever
Aleck, why are you so nonsensical as to pretend you don't see it's for you?
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Anonymous
I notice there's no nonsensical chatter when you want to ask for something to eat.
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Tom Godwin
The fervour of his words was nonsensical, but his intention, alas, was becoming clear.
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Wilmarth Lewis

Word Origin and History for nonsensical

adj.

1650s, from nonsense + -ical. Related: Nonsensically.