1 zesty, zestful, piquant, tangy, (well-)spiced, (well-)seasoned, hot, peppery, sharp, pungent, snappy, biting, full-bodied, aromatic, savoury, flavoursome, flavourful:
This curry is a little too spicy for my taste.
2 off colour, indelicate, suggestive, risqué, improper, indecent, indecorous, ribald, racy, bawdy, unseemly, offensive, titillating, sexy, Colloq hot:
This magazine often publishes spicy nude photos.
3 scandalous, sensational, outrageous, notorious, revealing, revelatory, intimate:
She likes to read about the spicy goings-on in Hollywood.