
Impermanent
Temporary Emotions
Use 'impermanent' to describe feelings that change like joy, anger, or sadness.

Her joy at winning the trophy was impermanent, as the reality of responsibilities set in.
Changeable Weather
Reference to weather or seasons highlights their natural inconsistency over time.

The sunny skies were impermanent, soon to be replaced by a blanket of clouds.
Not for Relationships
Avoid using 'impermanent' for human relationships unless you mean they're intentionally short-term.

Their partnership was strategic and impermanent, meant to last only for the duration of the project.
Compare with
EphemeralEvanescentFleetFugitiveMomentaryPassTemporaryTransitory
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