(said of something else causing the sensation) irritating, frustrating, due to not turning out as expected / (said of a person experiencing the sensation) impatient

anxiously awaited

end, conclusion / end-of-life, death

to end, to finish, to quit / to be in a hopeless position

end; conclusion; finish / death; collapse; fall

(mathematics) quod erat demonstrandum (that which was to be proved)

(Internet slang) a dead fad; out of fashion; no longer trendy

all's well that ends well