forethought /ˈfɔː(ɹ)θɔːt/noun 3/fɔː(ɹ)ˈθɔːt/ adjective 1forms 1 noun3 •Thinking beforehand or in advance, planning; prior or previous consideration.With a little forethought we'd have planned for this contingency and not been stuck here now. •Anticipation. •Provident care; prudence. forethought /fɔː(ɹ)ˈθɔːt/ adjective1 •Thought of, or planned, beforehand.Forethought malice. — 1613 formsforethoughts