Definition of mighty in English:

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Pronunciation: /ˈmʌɪti/

adjective (mightier, mightiest)

1Possessing great and impressive power or strength, especially because of size: three mighty industrial countries mighty beasts
More example sentences
  • This mighty power will continue to press for county councillors to respect the professional judgement of their highway engineers and consultants.
  • This nation, once a mighty world power, is being systematically stripped of all its wealth and influence, and no-one bats an eyelid.
  • A glance at the current spate of hotel marketing deals makes it clear that tykes are wielding some mighty power.
fearsome, ferocious;
big, tough, robust, manful, potent, sturdy, muscular, strapping, Herculean;
vigorous, energetic, stout
dominant, influential, strong, powerful, important, leading, authoritative, controlling, predominant, prestigious
1.1(Of an action) performed with or requiring great strength: a mighty blow
More example sentences
  • Stronger than rock, it yields a mighty blow to the foe with each assault.
  • He has given our people stout hearts and strong arms with which to strike mighty blows for freedom and truth.
  • It struck a mighty blow against slavery where it was strongest, in the plantation zone.
powerful, forceful, violent, ferocious, fierce, brutal, vicious, vigorous, hefty, thunderous, savage, destructive, damaging, painful;
lethal, deadly
1.2 informal Very large: a mighty £450
More example sentences
  • Near the docks I was approached by a hairy creature staggering under a mighty rucksack.
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(-sized), hulking, bumper, astronomical, astronomic
British informal whacking, whacking great, ginormous


[as submodifier] informal, chiefly North American
Extremely: my ears got cold mighty fast
More example sentences
  • So when you reach 6,000 rpm the first time and think that this is a mighty fast car, the CCX is just limbering up.
  • Cold, wind and precipitation can make you mighty uncomfortable, not to mention put you at risk for hypothermia.
  • It's mighty curious behavior to dump shares as the stock price is climbing and their marketablity should increase.
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



Pronunciation: /ˈmʌɪtɪnəs/
Example sentences
  • The Romans wanted the architecture to show off the magnificence and mightiness of their emperor.
  • No, mightiness comes later after many battles with enemy units, big spiders, polar bears, wolves, giants, and gangs of thugs.


Old English mihtig (see might2, -y1).

Words that rhyme with mighty

almighty, Aphrodite, Blighty, flighty, nightie

For editors and proofreaders

Line breaks: mighty

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