forewarning Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. a warning given in advance about something. Example Sentence The weatherman gave us forewarning of the approaching storm. More Example Sentences A forewarning helped them prepare for danger. Synonyms warning; alert; notice Antonyms ignore Hear It! Say It! Write It! forewarning Switch to cursive Start Share with your friends: