Composure; calmness and self-possession — the ability to stay collected under pressure.
彼は事故現場でも沈着に行動した。
He acted calmly even at the scene of the accident.
面接では沈着さが評価された。
His composure was appreciated in the interview.
沈着冷静な判断が求められる場面だった。
It was a situation that required calm, composed judgment.
Deposition; settling or accumulation of matter at the bottom — adherence or accumulation that results from settling.
川底に泥が沈着して航行に支障が出た。
Silt accumulated on the riverbed, obstructing navigation.
配管内部にスケールが沈着して流量が落ちた。
Scale built up inside the pipes, reducing flow.