Roget's Thesaurus: Entry 603 (Unwillingness)

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#603. Unwillingness. -- N. unwillingness &c. adj.; indisposition, indisposedness[obs]; disinclination, aversation[obs]; nolleity[obs], nolition[obs]; renitence[obs], renitency; reluctance; indifference &c. 866; backwardness &c. adj.; slowness &c. 275; want of alacrity,want of readiness; indocility &c. (obstinacy) 606[obs].

scrupulousness, scrupulosity; qualms of conscience, twinge of conscience; delicacy, demur, scruple, qualm, shrinking, recoil; hesitation &c. (irresolution) 605; fastidiousness &c. 868.

averseness &c. (dislike) 867[obs]; dissent &c. 489; refusal &c. 764.

V. be unwilling &c. adj.; nill; dislike &c. 867; grudge, begrudge; not be able to find it in one's heart to, not have the stomach to.

demur, stick at, scruple, stickle; hang fire, run rusty; recoil, shrink, swerve; hesitate &c. 605; avoid &c. 623.

oppose &c. 708; dissent &c. 489; refuse &c. 764.

Adj. unwilling; not in the vein, loth, loath, shy of, disinclined, indisposed, averse, reluctant, not content; adverse &c. (opposed) 708; laggard, backward, remiss, slack, slow to; indifferent &c. 866; scrupulous; squeamish &c. (fastidious) 868; repugnant &c. (dislike) 867; restiff|, restive; demurring &c. v.; unconsenting &c. (refusing) 764; involuntary &c. 601.

Adv. unwillingly &c. adj.; grudgingly, with a heavy heart; with a bad, with an ill grace; against one's wishes, against one's will, against the grain, sore against one's wishes, sore against one's will, sore against one's grain; invita Minerva[Lat]; a contre caeur[Fr]; malgre soi[Fr]; in spite of one's teeth, in spite of oneself; nolens volens &c. (necessity) 601[Lat]; perforce &c. 744; under protest; no &c. 536; not for the world, far be it from me.