Begrudge, meaning to envy or resent another's possessions or achievements, has several antonyms. One of them is "bless", which means to wish someone happiness or success. Another antonym for begrudge is "approve," which means to give consent or express agreement with someone. "Congratulate" could also be an antonym for begrudge, as it means to express happiness or praise someone for their achievements. Another antonym is "rejoice," which means to feel joy or happiness. Finally, "support" is an antonym of begrudge, meaning to help or assist someone achieve their goals. These antonyms convey positivity and compassion towards others, contrasting with the negative connotations of begrudging.