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Showing results for undersign. Search instead for understigen.
Definitions

undersign

[uhn-der-sahyn, uhn-der-sahyn] / ˌʌn dərˈsaɪn, ˈʌn dərˌsaɪn /
VERB
sign
Synonyms
STRONG
acknowledge authorize autograph confirm endorse initial ink inscribe subscribe witness
WEAK
put John Hancock on put John Henry on put one's John Hancock on rubber-stamp set one's hand to signature
Antonyms
STRONG
contradict deny oppose reject repudiate

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