Definition of Belligerent: Belligerent (adjective/noun): Hostile and aggressive; engaged in a conflict or war. Synonyms: aggressive, combative, confrontational, hostile Antonyms: peaceful, conciliatory, friendly, nonaggressive Memory Tip: Think of “belligerent” as someone who is ready to fight, always looking for a conflict or argument. Conversation and Short Story Examples Here is how “belligerent” can be used…