A lack of worry or interest, especially when surprising or callous.
More example sentences
- This concern often stands in marked contrast with the callous and greedy unconcern of the current wielders of power and influence in the Middle East.
- None can stand aside with unconcern; the interests of everyone hang on the result.
- Any man would be gutted by even one such loss, but Norman has always affected a public air of unconcern whenever the subject comes up.