na-adjective, adverb taking the 'to' particle
coquettish; charming; seductive
Describes a person, especially a woman, who is alluring in a playful, flirtatious, or bewitching way. Often used in literary or slightly old-fashioned contexts.
Everyone was captivated by her coquettish smile.
nari-adjective (archaic / formal), taru-adjective
Archaic original meaning, referring to elegant beauty or gracefulness. Now largely replaced by modern synonyms like 美しい or 優雅. Found in classical texts.
あだと笑うその仕草が、妙に色っぽかった。
That gesture of smiling charmingly was strangely seductive.
In classical literature, 婀娜 was read as あだ and expressed a graceful appearance.
coquettish woman; flirtatious woman
bewitching; coquettish; alluring; seductive
seductive; sensual; coquettish
The exact derivation is uncertain. The kanji 婀娜 are ateji (phonetic equivalents) used for their meaning of 'graceful' and 'slender', but the word itself is likely of native Japanese origin.