THESAURUS
about-face, awakening, backing, backsliding, ban, blackball, blackballing, complaint, debunking, dim view, disagreement, disappointment, disapprobation, disapproval, discontent, discontentedness, discontentment, disesteem, disfavor, disgruntlement, disillusion, disillusionment, displeasure, disrespect, dissatisfaction, dissent, distaste, enlightenment, exclusion, flip-flop, indignation, lapse, low estimation, low opinion, objection, opposition, opposure, ostracism, protest, recidivation, recidivism, reclamation, reconversion, regress, regression, rehabilitation, reinstatement, rejection, relapse, restitution, restoration, retrocession, retrogradation, retrogression, retroversion, return, return to reality, returning, reversal, reverse, reversion, reverting, revulsion, rude awakening, slipping back, thumbs-down, turn, turnabout, undeception, unhappiness, unspelling
ROGET THESAURUS
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.
Discovery
N
discovery, detection,
disenchantment, ascertainment, disclosure, find, revelation, trover.