momentary suggests coming and going quickly and therefore being merely a brief interruption of a more enduring state.

He accidentally forgot two students' names and hastily added them at the end -- a momentary omission that inflicted him with lasting embarrassment.

Something that is momentary lasts for a very short period of time, for example for a few seconds or less. ...a momentary lapse of concentration. His hesitation was only momentary.

Momentary definition: lasting but a moment; very brief; fleeting.. See examples of MOMENTARY used in a sentence.

Definition of momentary adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

1. Lasting for only a moment. 2. Occurring or present at every moment: in momentary fear of being exposed. 3. Short-lived or ephemeral, as a life.

Nov 29, 2025 · momentary (comparative more momentary, superlative most momentary) Lasting for only a moment. (obsolete) Happening at every moment; perpetual.