under-estimation (noun) disparagement: strong criticism; detraction
Sinonime: aspersion, backbiting, backstabbing, belittlement,
blame,
calumny,
censure,
condemnation,
contempt, contumely, debasement,
degradation, denunciation, depreciation,
derision, derogation,
discredit,
disdain, impairment, lessening,
lie,
prejudice,
reproach,
ridicule,
scandal,
scorn,
slander,
tale, underestimation
Antonime: approval,
commendation,
compliment,
flattery,
praise,
sanction