SYN: Faint, weary, feeble, unnerved, unbraced, pining, drooping, enervated, exhausted, flagging, spiritless.
ANT: Strong, healthy, robust, rigorous, active, braced.
=
KEY: Languish.
SYN: Pine, droop, sink, faint, wither, sigh, decline.
ANT: Flourish, luxuriate, bloom, prosper, thrive.
=
KEY: Languor.
SYN: Lassitude, weariness, weakness.
ANT: Strength, vigor, freshness, energy, lithesomeness.