4 adjectives to describe smoulders

Over all was the pervading Spring smell of fresh earth, and the distant smoulder of prairie fires.

A stroke of flint and steel was enough to start a little smoulder of flame, which lengthened and spread until it was leaping along the white strips of hanging bark.

If he had had the luck to be an only child, he might have lived as his father had done, letting his meagre competence smoulder on almost without consuming, like the fuel in an air-tight stove.

I know the reason: E'en now in thine unbodied essence lurks The fire of [S']iva's anger, like the flame That ever hidden in the secret depths Of ocean, smoulders there unseen.

4 adjectives to describe  smoulders