massively

to a large extent or degree I am massively irritated by this new development Synonyms astronomically, big-time, broadly, colossally, considerably, enormously, extensively, highly, hugely, largely, greatly, monstrously, monumentally, much, sizably, staggeringly, stupendously, tremendously, utterly, vastlyRelated Words appreciably, noticeably, significantly; abundantly, amply, copiously, healthily, plentifullyNear Antonyms modestly; fractionally; imperceptibly, infinitesimally, insignificantly, invisibly, microscopically, minutely; barely, hardly, just, minimally, scarcelyAntonyms little, negligibly, nominally, slightly