non-

American  

1. a prefix meaning “not,” freely used as an English formative, usually with a simple negative force as implying mere negation or absence of something (rather than the opposite or reverse of it, as often expressed byun- ): nonadherence; noninterference; nonpayment; nonprofessional .

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non- British  

prefix

1. indicating negation

   nonexistent

2. indicating refusal or failure

   noncooperation

3. indicating exclusion from a specified class of persons or things

   nonfiction

4. indicating lack or absence, esp of a quality associated with what is specified

   nonobjective

   nonevent

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Etymology

Origin of non-

A prefix representing the Latin adverb nōn “not”

Example Sentences

"If you get it from a non‑reputable source, the medication might not be what it says it is."

From BBC

"We are asking New Yorkers to avoid all non essential travel," the mayor said.

From Barron's

Her final performance here was to Non, je ne regrette rien by Edith Piaf, and Sakamoto must have no regrets about a performance in which all 12 elements were given positive grades of execution.

From BBC

But skating to a version of "Non, je ne regrette rien" Sakamoto lost points for not doing her planned triple combination jump.

From Barron's

Authorisation to carry the "non‑lethal" weapon is granted "on an experimental basis" for a period of three years from the date the decree enters into force, the journal entry said.

From Barron's