すっかりsukkari
1.
A manner of expressing that something has been done without exception, leaving nothing behind, often emphasizing completeness or totality.
2.
A description of a state where a transformation or change has occurred thoroughly, highlighting how everything has now reached a new condition or level.
3.
An expression used to convey clarity and neatness, often associated with a well-organized or well-presented appearance.
4.
A way to indicate that an action or decision has been made decisively, with no hesitation or ambiguity.