na-adjective
alluring; enticing; tempting; seductive
Describes something that strongly attracts or tempts, often with a sense of charm or appeal that may lead one astray. Used for people, offers, atmospheres, etc.
彼女の誘惑的な微笑みに、思わず見とれてしまった。
I couldn't help but be captivated by her alluring smile.
その誘惑的な提案を断るのは難しかった。
It was hard to turn down that tempting offer.
Compound of 誘惑 (ゆうわく, 'temptation, allurement') + 的 (てき, '-like, -ish'). The derivation is straightforward; the exact historical origin of 誘惑 is uncertain but is conventionally associated with the kanji meanings 'invite' and 'bewilder'.