noun which may take the genitive case particle 'no', taru-adjective, adverb taking the 'to' particle
very interesting; absorbing; keenly interested; immensely curious
Describes a state of intense curiosity or fascination, either about something (～に興味津々) or as a description of a person's attitude. Often used with ～に or as a の-adjective modifying a noun.
He is immensely curious about the new gadget.
The children watched the experiment with expressions of absorbing interest.
He's absolutely fascinated by the new project.
The children watched the experiment with looks of intense curiosity.
He listened to the story with great curiosity.