Synonyms for Be of no avail:

• v.

  •waste (verb)
  • empty,
  • disappear,
  • throw away,
  • trifle away,
  • drain,
  • divert,
  • corrode,
  • splurge,
  • disable,
  • decrease,
  • pour down the drain,
  • decay,
  • blow,
  • lose,
  • run dry,
  • frivol away,
  • undermine,
  • emaciate,
  • misuse,
  • fade,
  • misapply,
  • gamble away,
  • gnaw,
  • dissipate,
  • decline,
  • thin,
  • burn up,
  • eat away,
  • go to waste,
  • lavish,
  • sink,
  • perish,
  • wither,
  • deplete,
  • crumble,
  • atrophy,
  • fritter away,
  • wear out,
  • enfeeble,
  • exhaust,
  • wilt,
  • wear,
  • sap,
  • squander,
  • ebb,
  • Misemploy,
  • droop,
  • run through,
  • debilitate,
  • wane,
  • consume.

• Other synonyms:

  •waste
  • waste,
  • burned up,
  • atrophying,
  • emaciates,
  • Emaciating,
  • eats away,
  • atrophied,
  • Misapplied,
  • eating away,
  • burning up.

Antonyms for Be of no avail:

• v.

  • waste
    gather, save, develop, succeed, maintain, fill, rise, preserve, help, build, improve, starve, assist, strengthen, grow, aid, collect, create, raise, hoard, bloom, increase, accumulate.