Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

605. Irresolution — N. irresolution, infirmity of purpose, indecision;

indetermination, undetermination†; unsettlement; uncertainty &c 475; demur, suspense; hesitating &c v., hesitation, hesitancy; vacillation; changeableness &c 149; fluctuation; alternation &c (oscillation) 314; caprice &c 608. fickleness, levity, legerete [Fr.]; pliancy &c (softness) 324; weakness; timidity &c 860; cowardice &c 862; half measures. waverer, ass between two bundles of hay; shuttlecock, butterfly; wimp; doughface [U.S.]. V. be irresolute &c adj.; hang in suspense, keep in suspense; leave "ad referendum"; think twice about, pause; dawdle &c (inactivity) 683; remain neuter; dillydally, hesitate, boggle, hover, dacker†, hum and haw, demur, not know one's own mind; debate, balance; dally with, coquet with; will and will not, chaser-balancer†; go halfway, compromise, make a compromise; be thrown off one's balance, stagger like a drunken man; be afraid &c 860; let 'I dare not' wait upon 'I would' [Macbeth]; falter, waver vacillate &c 149; change &c 140; retract &c 607; fluctuate; pendulate†; alternate &c (oscillate) 314; keep off and on, play fast and loose; blow hot and cold &c (caprice) 608. shuffle, palter, blink; trim. Adj. irresolute, infirm of purpose, double-minded, half-hearted; undecided, unresolved, undetermined; shilly-shally; fidgety, tremulous; hesitating &c v.; off one's balance; at a loss &c (uncertain) 475. vacillating &c v.; unsteady &c (changeable) 149; unsteadfast†, fickle, without ballast; capricious &c 608; volatile, frothy; light, lightsome, light-minded; giddy; fast and loose. weak, feeble-minded, frail; timid, wimpish, wimpy &c 860; cowardly &c 862; dough-faced [U.S.]; facile; pliant &c (soft) 324; unable to say 'no', easy-going revocable, reversible. Adv. irresolutely &c adj.; irresolved†, irresolvedly†; in faltering accents; off and on; from pillar to post; seesaw &c 314. Int. how happy could I be with either! [Gay].