anti-jam adjective an·ti-jam \ ˌan-tē-ˈjam , ˌan-tī- \ variants: or anti-jamming play \ˌan-tē-ˈja-miŋ, ˌan-tī-\ or less commonly antijam or antijamming Trending Now: More Trending: lowlife kakistocracy slimeball salacious oligarch SEE ALL See What's Trending Now See More Trending Words What's Trending Now More Trending Words lowlife 'a person of low moral character' kakistocracy 'government by the worst people' slimeball 'a morally repulsive or odious person' salacious 'arousing or appealing to sexual desire' oligarch 'government in which a small group exercises control' SEE ALL Time Traveler! Explore the year a word first appeared Definition of anti-jam : used or intended to inhibit or prevent electronic jamming (see 2jam transitive 4) anti-jam technology an anti-jamming feature First Known Use of anti-jam 1893 See Words from the same year NEW! Time Traveler Seen and Heard What made you want to look up anti-jam? Please tell us where you read or heard it (including the quote, if possible). show hide