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Showing results for unnecessary. Search instead for unnecessa.
Definitions

unnecessary

[uhn-nes-uh-ser-ee] / ʌnˈnɛs əˌsɛr i /
ADJECTIVE
not required
Synonyms
STRONGEST
avoidable futile gratuitous irrelevant needless redundant superfluous unneeded useless worthless
WEAK
accidental additional beside the point casual causeless chance dispensable excess exorbitant expendable extraneous extrinsic fortuitous haphazard inessential lavish noncompulsory nonessential optional prodigal profuse random supererogatory surplus uncalled-for uncritical undesirable unessential unrequired wanton
Antonyms
STRONGEST
necessary needed valuable worthwhile
WEAK
indispensable required

Example Sentences

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

This allows the system to plan more effectively and avoid unnecessary trial and error.

From Science Daily • Apr. 5, 2026

The UConn legend is still trying to climb out after an unnecessary clash with South Carolina rival Dawn Staley.

From The Wall Street Journal • Apr. 5, 2026

He encouraged Australians to limit unnecessary fuel use and switch to public transport where possible.

From BBC • Apr. 4, 2026

Such seamless technologies teach us that repair and understanding is not our role and that such proficiency and knowledge is unnecessary.

From Slate • Apr. 4, 2026

He’s pulled me out of English class on the first day of school, which seems unnecessary and makes me feel anxious because I had to leave Boy21 behind, and Coach won’t like that.

From "Boy21" by Matthew Quick