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undersell

[uhn-der-sel] / ˌʌn dərˈsɛl /
VERB
discount
Synonyms
STRONGEST
deduct diminish knock off mark down modify
STRONG
abate allow depreciate rebate redeem remove subtract
WEAK
hold a sale make allowance for sell at discount strike off take away take off
Antonyms
STRONGEST
grow increase
WEAK
mark up raise

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.