powerless

adj

1. impotent, impuissant, strength-less, harmless, ineffectual, ineffective, inefficacious, nugatory, null and void, inoperative; incompetent, inept, inapt, unfit, inefficient, inadequate, insufficient, incapable; useless, inutile, worthless, valueless, no good, vain, futile.

2. helpless, unable to do anything, dependent, unable to help oneself; weak, feeble, frail, infirm, Pathol. asthenic, Rare. imbecile; disabled, incapacitated, Fr. hors de combat. sidelined, debilitated, decrepit, invalid, crippled, lame, hobbled, paralyzed, paralytic, Pathol. paraplegic; enervated, devitalized, enfeebled, effete, sapless, emasculated, faint, washed-out, Sl. wasted, Pathol. adynamic; exhausted, spent, worn-out, all in, done in or for, laid up, flat on one's back, prostrate.

3. defenseless, unarmed, weaponless; unguarded, unprotected, unfortified, open to attack, wide open, exposed, naked, uncovered; vulnerable, pregnable, penetrable, invadable, attackable, assaultable, ex-pugnable, vincible, conquerable; insecure, unsafe, dangerous, perilous, precarious; assailable, without defense, resourceless, with nowhere to turn; without recourse, over a barrel, on the ropes