NG
Proposed by a contributor, not yet supported by evidence.
Meaning · English
Not OK. Initialism of no good.
Adjective
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “NG” mean?
Not OK. Initialism of no good.
Is “NG” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.