(General American) IPA(key): /ˌsupəɹˈkɔ.zəɫ/ supercausal (comparative more supercausal, superlative most supercausal) Faster than the speed of causality, and...
emitting radio waves, not visible light. FTL, superlumic, hyperlight supercausal (faster than the speed of causality) STL, subluminal, sublumic, sublight...