THESAURUS
Averse
abhorrent, afraid, allergic, anti, antipathetic, at odds, averse to, backward, balky, contrary, cursory, differing, disaffected, disagreeing, disenchanted, disgusted, disinclined, disobedient, displeased, forced, fractious, hating, hesitant, hostile, ill-disposed, indisposed, indocile, involuntary, loath, loathing, mutinous, not charmed, opposed, perfunctory, perverse, put off, quailing, recalcitrant, recoiling, refractory, reluctant, resistant, shrinking, sulky, sullen, uncongenial, unconsenting, uneager, unfriendly, unsympathetic, unwilling
ROGET THESAURUS
Averse
Unwillingness
N
unwillingness, indisposition, indisposedness, disinclination, aversation, nolleity, nolition, renitence, renitency, reluctance, indifference, backwardness, slowness, want of alacrity, want of readiness, indocility, scrupulousness, scrupulosity, qualms of conscience, twinge of conscience, delicacy, demur, scruple, qualm, shrinking, recoil, hesitation, fastidiousness, averseness, dissent, refusal, unwilling, not in the vein, loth, loath, shy of, disinclined, indisposed, averse, reluctant, not content, adverse, laggard, backward, remiss, slack, slow to, indifferent, scrupulous, squeamish, repugnant, restiff, restive, demurring, unconsenting, involuntary, unwillingly, 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, a contre caeur, malgre soi, in spite of one's teeth, in spite of oneself, nolens volens, perforce, under protest, no, not for the world, far be it from me.
Dissuasion
N
dissuasion, dehortation, expostulation, remonstrance, deprecation, discouragement, damper, wet blanket, disillusionment, disenchantment, cohibition, curb, check, reluctance, contraindication, dissuading, dissuasive, dehortatory, expostulatory, monitive, monitory, dissuaded, admonitory, uninduced &c (induce), unpersuadable, averse, repugnant, repressed.