Antics = Foolish or amusing behaviour e.g by a clown at circus etc.( when you pronounce this word give stress at the first syllable.)

• In the movie the comedian displays his antics and mannerisms.
• Their physical antics and comic duets made the audience laugh.
• She had little patience for his antics and stupidity.
• The antics of our own political parties.
• The clown’s antics made the children laugh.

Antique = Belonging to the past  e.g a piece of furniture , a work of art etc. ( Here you give stress at the second syllable)

• She loves collecting antiques (noun)
• I can’t give away my grandfather’s walking stick.  It’s an invaluable antique for me! (noun)
• Antique shop = ( a shop where antiques are sold. (adjective)
• An antique clock. (adjective)
• Statues of antique gods. (adjective)