momentary
词形变化：
同义词：
transient | fleeting | temporary | quick | brief | short | short-lived | transitory | passing | ephemeral | immediate | instant | abrupt | instantaneous | sudden | evanescent | impermanent | slippery | flying | mushroom | momentous | fugitive | momentaneous |
反义词：
agelong |
词义辨析：
同义:
a.瞬息间的
instantaneous
instant
immediate
quick
abrupt
sudden
a.短暂的
brief
short
short-lived
temporary
impermanent
transient
transitory
ephemeral
evanescent
fleeting
passing
同义参见:
flying
mushroom
slippery
反义:
a.瞬间的; 随时的
agelong
反义参见:
eternal
perpetual
permanent