catchy (adj.)
- agreeable
- appealing
- ariose
- beguiling
- broken
- canorous
- cantabile
- capricious
- choppy
- deceiving
- deceptive
- delusive
- delusory
- desultory
- disconnected
- discontinuous
- dubious
- dulcet
- eccentric
- erratic
- euphonic
- euphonious
- euphonous
- fallacious
- false
- fishy
- fitful
- flickering
- fluctuating
- golden
- hallucinatory
- halting
- honeyed
- illusive
- illusory
- inconstant
- intermittent
- irregular
- jerky
- mellifluous
- mellisonant
- mellow
- melodic
- melodious
- misleading
- musical
- nonuniform
- patchy
- pleasant
- questionable
- rambling
- rich
- rough
- scrappy
- silver-tongued
- silvery
- singable
- songful
- songlike
- sonorous
- spasmodic
- spastic
- sporadic
- spotty
- staggering
- sweet
- tricksy
- tricky
- tuneful
- uncertain
- unequal
- uneven
- unmethodical
- unrhythmical
- unsettled
- unsteady
- unsystematic
- variable
- wandering
- wavering
- wobbling
- wobbly