Antics : Antics are absurd, amusing, silly or strange acts or behaviour.
Synonyms: foolery,idiocy, stupidity
Antique : something that is very old, and is preserved because it is beautiful and rare.
Usage of Antics:
1)His antics at the party amused everyone.
Usage of Antique:
1) That museum is full of antiques.
2) The preservation of antiques is a very critical issue.