powerful adj.
VERBS be, feel, look, seem | become
ADV. enormously, especially, exceptionally, extraordinarily, extremely, immensely, incredibly, particularly, really, remarkably, surprisingly, tremendously, unusually, very | increasingly | fairly, pretty, quite, reasonably, relatively | enough, sufficiently She had a voice powerful enough not to need a microphone. | potentially | economically, politically a politically powerful figure | locally locally powerful landowners
You can also check other dicts: powerful (English, 中文解释 ), wordnet sense, Collins Definition