Very calm and relaxed.
とても落ち着いてリラックスしている。 (totemo ochitsuite rirakkusu shiteiru)
"Even in stressful situations, she stays as cool as a cucumber."
"ストレスのある状況でも、彼女はとても落ち着いている。" (sutoresu no aru jokyo demo kanojo wa totemo ochitsuiteiru)
to use a political issue to one’s advantage
to keep your plans or intentions secret
to be angry or resentful about something from the past
the overall view or perspective of a situation
crawling on hands and knees
to improve or develop something beyond its current state