un enduring (adjective) ephemeral: momentary, passing
Sinonime: brief, episodic,
evanescent,
fleeting, flitting, fugacious, fugitive, impermanent,
short, short-lived,
temporary,
transient, transitory, unenduring,
volatileAntonime: enduring,
eternal,
everlasting,
interminable,
lasting,
long,
permanent,
perpetual