catchy

Instantly appealing and memorable.

Eric wrote a catchy tune to play on his acoustic guitar while Alyssa plays the drums.

This hook is so catchy that I can't stop listening to it!

Tending to catch or ensnare; entangling.

a catchy question

Consisting of, or occurring in, disconnected parts or snatches; changeable.

a catchy wind

Encyc. of Sport It [the fox's scent] is […] flighty or catchy, if variable.

Contagious; catching.

The catchy cold which has been transmitted to you directly or indirectly might have been avoided had you been in better physical condition.