a kind of baseball characterized by hard-thrown overhand pitching
the ball typically used in this game; baseball (sense )
any ruthless, aggressive, highly competitive form of politics, business, etc.: esp. in the phrase , to engage in some activity in a ruthless, highly competitive way
adjective
of or characterized by ruthlessness, competitiveness, coercion, etc.: hardball business practices
See hardball in American Heritage Dictionary 4
(härdˈbôlˌ)
noun
Baseball.
Informal The use of any means, however ruthless, to attain an objective.