undervalue

verb

the enthusiasm and initiative of youth was often undervalued by the older generation:

underrate, set little store by, rate too low, think too little of, underestimate, not do justice to, do an injustice to, play down, understate, underemphasize, de-emphasize, diminish, minimize, downgrade, reduce, lessen, brush aside, gloss over, shrug off, trivialize;

belittle, hold cheap;

informal sell short;

rare misprize, minify.

▷antonyms overrate.