schysst

Etymology
From.

Adjective

 * 1)  nice, helpful
 * 2)  good, nice
 * 3) fair, not involving trickery, deceit, or unjustness
 * 1)  good, nice
 * 2) fair, not involving trickery, deceit, or unjustness
 * 1) fair, not involving trickery, deceit, or unjustness
 * 1) fair, not involving trickery, deceit, or unjustness
 * 1) fair, not involving trickery, deceit, or unjustness
 * 1) fair, not involving trickery, deceit, or unjustness

Usage notes
Despite being the most common spelling, schysst still only appears in Svensk ordbok (SO) and not in Svenska Akademiens ordlista (SAOL). The recommended spelling for a long time was sjyst, but has not taken off. See this DN article for some background.