Definitions
lacking the ability or skill to perform effectively; inadequate
Word origin
From in- + effective.
Used in a sentence
“Their use was “impermissible not because it is unwise or ineffective, but because [federal law]^([sic]) does not allow it”, the decision explained.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Not working”11 letters
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