undervalue

verbs

assign too low a value to
"Don't underestimate the value of this heirloom-you may sell it at a good price"
underestimate, undervalue
is derived from
undervaluation
antonym
overvalue
esteem lightly
undervalue
is derived from
undervaluation
is a type of (narrower)
have little or no respect for; hold in contempt
disesteem, disrespect
lose in value
"The dollar depreciated again"
depreciate, devaluate, devalue, undervalue