holds attention
- captivatesHolds rapt attention
- rivetingCompletely holding one's attention
- grippingHolding attention completely
- mesmerizingCompletely capturing one's attention
- spellboundHeld as if enchanted
engrossed · absorbed · rapt · fixated · compelling · enthralling · transfixed · glued · hooked · fascinated · entranced · magnetic · hypnotic · arresting · commanding · unputdownable · binge · cliffhanger
engagement
holds attentionbores
Drills or tires
puts to sleep · disengages · tunes out · numbs · fatigues
memorability
holds attentionforgettable
Unlikely to be recalled
unmemorable · unremarkable · bland · nondescript · generic