A state of active curiosity.

synonym: curiousness.

Roget 455: interest, thirst for knowledge, thirst for truth; curiosity, curiousness; inquiring mind; inquisitiveness.    omnivorous intellect, devouring mind.    [person who desires knowledge] inquirer; sightseer; quidnunc [Lat.], newsmonger, Paul Pry, eavesdropper; gossip etc. (news) 532; rubberneck; intellectual; seeker [inquirer after religious knowledge], seeker after truth.    ... show more

Dutch: nieuwsgierigheid
Polish: wnikliwość, dociekliwość