Definition of for all (someone) cares
- For all I care, he can leave today.
- She could quit the whole thing, for all he cares.
: the whole amount, quantity, or extent of
: as much as possible
: every member or individual component of
: wholly, quite
: selected as the best (as at a sport) within an area or organization
: only, exclusively
: the whole number, quantity, or amount : totality
used in such phrases as for all I know, for all I care, and for all the good it does to indicate a lack of knowledge, interest, or effectiveness
: everybody, everything
: the whole of one's possessions, resources, or energy
: other : different : atypical
: isomeric form or variety of (a specified chemical compound)
: being one of a group whose members together constitute a structural unit especially of a language
: some person : somebody
: suffering of mind : grief
: a disquieted state of mixed uncertainty, apprehension, and responsibility
: a cause for such anxiety
: to feel trouble or anxiety
: to feel interest or concern
: to give care
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