Schlub, a Yiddish word meaning a person who is unattractive, sloppy, or awkward, may have several antonyms depending on the context of the word. For instance, one antonym for schlub could be "distinguished" or "refined" if we consider the opposite of sloppy or unattractive. Another possible antonym for schlub could be "polished" or "elegant" if we think of the opposite of awkward or ungraceful. Additionally, "neat" or "tidy" could also be antonyms for schlub if we consider the opposite of someone who is unkempt or disheveled. Overall, the antonyms for schlub will vary depending on the specific meaning the speaker or writer intends to convey.