UNDERRATE, underestimate, undervalue, underreckon; depreciate; disparage (detract) [See Detraction]; not do justice to; misprize, disprize; ridicule [See Ridicule]; pessimize; slight (despise) [See Contempt]; neglect [See Neglect]; slur over.
make -light, - little, - nothing, - no account- of; belittle, knock [slang], slam [slang], run down [colloq.], minimize, think nothing of; set no store by, set at naught; shake off like water from a ducks back, shake off as dewdrops from the lions mane.