verybitter |
bitterly |
As an adverb bitterly is
in a bitter manner.
verybitter |
bitter |
As an adjective bitter is
having an acrid taste (usually from a basic substance).
As a noun bitter is
(usually in the plural bitters) a liquid or powder, made from bitter herbs, used in mixed drinks or as a tonic.
As a verb bitter is
to make bitter.