Every English dictionary marks the word ‘composure’ as an uncountable noun. However, sometimes I come across sentences like this:
- They had a composure and self-confidence to them I've never found in other kids.
- He withstood all that with a composure and a steadiness that astonished us all.
- She has a composure bordering on serenity.
- …teaches us how to maintain a composure even after so many hardships in relations.
- …until showing a composure that we hadn’t previously given him credit for.
- …and he handled this with a composure uncommon to a fifteen-year-old.
How come an uncountable noun is used with the indefinite article?