POWERFUL Synonyms: 73 Similar and Opposite Words - Merriam-Webster
https://www.merriam-webster.com/thesaurus/powerful
WebSynonyms for POWERFUL: influential, significant, strong, important, potent, mighty, prominent, heavy-duty; Antonyms of POWERFUL: weak, little, powerless, insignificant, unimportant, helpless, impotent, feeble.
DA: 70 PA: 89 MOZ Rank: 46