Synonyms for Catchy:

adj.

all (adjective)
tricky.
captivating, addictive (adjective)
popular, haunting.

n.

catchy (noun)
appealing, hard, attention-getting, tricky, difficult.
memorable (noun)
engaging, haunting, musical, charming, infectious, singable, snappy, sprightly, tuneful, pleasant, bouncy, popular.

Other synonyms:

haunting, dimly. blurred, etched, commemorative, pleasant, elusive. foggy, conscious.

Usage examples for catchy

  1. You see, one has to work in a lot of sentimental, sugary compliment with a catchy rhyme, and a certain amount of personal biography or prophecy. – The Chronicles of Clovis by Saki
  2. The sentiment that she put into the second verse of the catchy little duet, " I Think 'twould Break my Heart," was exquisitely delicate and true. – Famous Prima Donnas by Lewis Clinton Strang