fleeting; vanishing; quickly passing away
The pleasures of this life are evanescent: set your mind instead on the eternal truths of philosophy.
e ex (out)#vanescere (vanish) (Latin)
ephemeral, evanescent, transient, transitory
enduring, immutable, perennial
Remember it as "I want scent. Scent evaporates like vapour. Vanishing Scent e-vanescent. vanescent sounds like vanishing. hence.