interesting

arousing or holding the attention

• absorbing, engrossing, fascinating, gripping, riveting — capable of arousing and holding the attention
• intriguing — capable of arousing interest or curiosity
• newsworthy — sufficiently interesting to be reported in a newspaper
• unputdownable — (of a book etc) so well written and entertaining as to be difficult to put down

• interest, interestingness — the power of attracting or holding one's interest (because it is unusual or exciting etc.)