Antonyms of noun uncle

1 of 2 senses of uncle

Sense 1
uncle -- (the brother of your father or mother; the husband of your aunt)
       Antonym of aunt (Sense 1)
      => aunt, auntie, aunty -- (the sister of your father or mother; the wife of your uncle)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun uncle

2 senses of uncle

Sense 1
uncle -- (the brother of your father or mother; the husband of your aunt)
       => kinsman -- (a male relative)

Sense 2
uncle -- (a source of help and advice and encouragement; "he played uncle to lonely students")
       => benefactor, helper -- (a person who helps people or institutions (especially with financial help))