Opposite Word Game

Transient

Immortal

impermanent

Ephemeral

(I might argue that "impermanent" and "ephemeral" have similar meanings, but.. hey!)

Lasting

Concluding

start

Complete

Partial

Intact

shattered

Whole

Fraction

Entirety

Part

Whole

Incomplete

Concluded

Initiated

Stopped

Launched

Retreived

Lost

Discovered

Overlooked

Acknowledged

Ignored

Welcomed

Rejected

Accepted