adj. 25B6; adjective REGRETFUL, apologetic, sorry, remorseful, shamefaced, sheepish, hangdog, contrite, repentant, penitent, conscience-stricken, self-reproachful; sorrowful, sad.
RUEFUL
Meaning of RUEFUL in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012