" fugacious "

1: lasting only for a short time;

  * e.g., " ... savor the fugacious pleasures of life as intensely as the more enduring ones "

•  Synonyms : 

•  brief,

•  deciduous,

•  ephemeral,

•  evanescent,

•  flash,

•  fleeting,

•  fugitive,

•  impermanent,

•  momentary,

•  passing,

•  short-lived,

•  temporary,

•  transient,

•  transitory

•  Antonyms : 

•  ceaseless,

•  dateless,

•  deathless,

•  endless,

•  enduring,

•  eternal,

•  everlasting,

•  immortal,

•  lasting,

•  long-lived,

•  permanent,

•  perpetual,

•  timeless,

•  undying,

•  unending