adverb taking the 'to' particle, adverb
smoothly; swiftly; without resistance
Describes something sliding, slipping, or moving along smoothly and quickly, often with a sense of ease or lack of friction. Common with verbs like 滑る, 進む, 抜ける.
The snake slithered smoothly through the grass.
He solved the difficult problem swiftly and effortlessly.
Kana-only mimetic adverb; no kanji form exists.
Onomatopoeic/mimetic word; the exact origin is uncertain, but it likely imitates the sound or sensation of something sliding smoothly.