transient
- (a) of a mental act; causing effects outside the mind transeunt,
-
(s) lasting a very short time
- the ephemeral joys of childhood
- a passing fancy
- youth's transient beauty
- love is transitory but it is eternal
- fugacious blossoms
Nouns
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(n) one who stays for only a short time
- transient laborers
- (n) (physics) a short-lived oscillation in a system caused by a sudden change of voltage or current or load