momentariness

the state or quality of lasting only for a short time the momentariness of the pain from the needle prick hardly compares to the lasting good feelings that a blood donor experiences Synonyms ephemerality, evanescence, fleetingness, fugitiveness, impermanency, impermanence, temporariness, transience, transiency, transitorinessRelated Words brevity, shortnessNear Antonyms continuance, continuation; longevityAntonyms endurance, permanence, permanency