1 fascinate, beguile, captivate, attract, absorb, charm, pique, interest, titillate, arouse or excite the curiosity (of):
It intrigues me to watch them put those ships into bottles.
2 conspire, plot, connive, scheme, manoeuvre:
She was sure that everyone was intriguing against her.
3 conspiracy, plot, scheme, manoeuvre, collusion, stratagem, trickery, chicanery, double-dealing, guile, subterfuge, artifice, machination, deception:
Many of those close to the government are engaged in intrigue of some kind.
4 affair, liaison, amour, romance, intimacy; adultery:
We all knew about the intrigue he was carrying on with the duke's wife.