na-adjective, noun which may take the genitive case particle 'no', noun
good condition; going well; smooth
Describes a favorable state or progress, often used for health, machinery, or the flow of events. Common in phrases like 快調に進む (progress smoothly) and 体調が快調だ (be in good shape).
The engine is running smoothly.
仕事は快調に進んでいる。
Work is progressing well.
The new project is progressing smoothly.
The team got off to a great start this season.
I've been feeling great lately, so I'm jogging every day.
The new engine is running smoothly.