2 adjectives to describe spicy

Mr. Jennings always was a smart, spicy, and sometimes even brilliant writer, but he could not help being more or less cynical.

His letters are excellent: simple, spirited, spicy, and as original as his verse; flavoured with that vein of rattling open-air humour which had produced his school-boy novel in the style of Fielding.

2 adjectives to describe  spicy