adverb, adverb taking the 'to' particle
swaying repeatedly; rocking gently
Describes a large, slow, repeated swaying or rocking motion, often used with と. Evokes a relaxed, rhythmic movement.
柳の枝が風にゆらりゆらりと揺れている。
The willow branches are swaying gently in the wind.
船が波にゆらりゆらりと揺られていた。
The boat was rocking slowly on the waves.