Roget's Thesaurus

#483. Underestimation

Nouns

underestimation; depreciation etc. (detraction) 934; pessimism, pessimist; undervaluing etc. v.; modesty etc. 881.

Verbs

underrate, underestimate, undervalue, underreckon; depreciate; disparage etc. (detract) 934; not do justice to; misprize, disprize; ridicule etc. 856; slight etc. (despise) 930; neglect etc. 460; slur over. make light of, make little of, make nothing of, make no account of; belittle; minimize, think nothing of; set no store by, set at naught; shake off as dewdrops from the lion's mane.

Adjectives

depreciating, depreciated etc. v.; unvalued, unprized.