extraordinarily great or intense

terrific speed.

extremely good; wonderful

a terrific vacation.

causing terror; terrifying.

adjective

calm , moderate , bad , inferior , low , nasty , poor

adjective

agitating , appalling , awesome , awful , deafening , disquieting , dreadful , enormous , excessive , extreme , fearful , fierce , formidable , frightful , gigantic , great , harsh , horrible , horrific , huge , immense , large , monstrous , severe , shocking , terrible , terrorizing , thunderous , tremendous , upsetting , ace * , amazing , breathtaking , divine , excellent , fabulous , fantastic , fine , glorious , groovy * , hot * , keen * , magnificent , marvelous , outstanding , sensational , smashing , stupendous , super , superb , swell , very good , bloodcurdling , hair-raising , horrid , ace , banner , blue-ribbon , brag , capital , champion , first-class , first-rate , prime , quality , splendid , superior , tiptop , top , fantastical , wonderful , alarming , distressing , disturbing , exciting , intense , terrifying