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not useful

is not in our dictionary (yet). Here's what it could mean:

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adjective

  • Serving no purpose; lacking in practical value or effectiveness.

Example Sentences

Examples are provided to illustrate usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

They pull them out when it’s useful and get them to the right result, and they ignore them when they’re not useful and don’t get them to the right result.

From Slate ● Oct. 5, 2026

“That doesn’t mean it’s not useful, but if the bill is landmark, it’s because Congress finally did something in this area – not because the impact would be huge,” Katz said in a note.

From MarketWatch ● Jun. 26, 2026

Thesaurus

Possible Synonyms

Words in our thesaurus

other words

  • a chocolate teapot
  • just taking up space
  • all sizzle, no steak
  • a dead end

Possible Antonyms

Words in our thesaurus

other words

  • the real deal
  • a game-changer
  • a lifesaver

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