Piquant
Part of speech: adjective
Definition: Engaging; charming. Favorably stimulating to the palate; pleasantly spicy; stimulating. Causing hurt feelings; scathing.
Stimulating
Part of speech: adjective
Definition: In a manner that stimulates.
Part of speech: verb
Definition: To encourage into action.
Example sentence: To keep art stimulating, it's important to open it up to new horizons, which includes showing it in unexpected contexts.