Emphatic prefix attached to adjectives and verbs, often with a colloquial or intensifying effect. Common in words like すっごい (very amazing) and すっきり (refreshingly).
This ramen is incredibly delicious!
After cleaning the room, I felt refreshed.
feign ignorance; pretend not to know
stark naked; completely nude · penniless; broke
spy; ninja-like agent · thief; liar
wild; crazy; hysterical; freakish
Standard kanji spelling for this emphatic prefix.
Kana spelling is common in casual writing.
Derived from the prefix 素 (す) with a geminate consonant added for emphasis. The exact historical development is uncertain.