Synonyms of mighty in English:

mighty


See US English definition of mighty

See UK English definition of mighty

See Spanish definition of poderoso

adjective

1‘a mighty blow to the back of the head’

SYNONYMS
powerful, forceful, violent, ferocious, fierce, brutal, vicious, vigorous, hefty, thunderous, savage, destructive, damaging, painful
lethal, deadly
ANTONYMS

feeble

2‘a mighty warrior’

SYNONYMS
fearsome, ferocious
big, tough, robust, manful, potent, sturdy, muscular, strapping, Herculean
vigorous, energetic, stout
ANTONYMS

puny, tiny

3‘three mighty industrial countries’

SYNONYMS
dominant, influential, strong, powerful, important, leading, authoritative, controlling, predominant, prestigious
ANTONYMS

insignificant

4‘mighty oak trees’

SYNONYMS
huge, enormous, massive, gigantic, big, large, great, giant, colossal, mammoth, vast, immense, tremendous, stupendous, monumental, prodigious, mountainous, monstrous, titanic, towering, elephantine, king-sized, king-size, gargantuan, Brobdingnagian, substantial
informal mega, monster, whopping, whopping great, thumping, thumping great, humongous, jumbo, jumbo-sized, hulking, bumper, astronomical, astronomic
British informal whacking, whacking great, ginormous
ANTONYMS

tiny


adverb

1‘I'm mighty pleased to see you’

SYNONYMS
extremely, exceedingly, enormously, vastly, immensely, tremendously, hugely, markedly, remarkably, abundantly, deadly, awfully, dreadfully, mightily, very, very much, most, so, to a great extent
informal majorly, mega, oh-so, way, stinking, bitching
British informal well, jolly
North American informal plumb
South African informal lekker
informal, dated frightfully, devilish