[ mahy-tee ]
/ ˈmaɪ ti /

adjective, might·i·er, might·i·est.

having, characterized by, or showing superior power or strength: mighty rulers.
of great size; huge: a mighty oak.
great in amount, extent, degree, or importance; exceptional: a mighty accomplishment.


Informal. very; extremely: I'm mighty pleased.


(used with a plural verb) mighty persons collectively (usually preceded by the): the rich and the mighty.

Origin of mighty

before 900; Middle English; Old English mihtig. See might2, -y1


2 immense, enormous, tremendous, sizable.

Related forms

might·i·ness, nouno·ver·might·y, adjectivequa·si-might·y, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for mighty

British Dictionary definitions for mighty


/ (ˈmaɪtɪ) /

adjective mightier or mightiest

  1. having or indicating might; powerful or strong
  2. (as collective noun; preceded by the)the mighty
very large; vast
very great in extent, importance, etc


informal, mainly US and Canadian (intensifier)he was mighty tired

Derived Forms

mightiness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Idioms and Phrases with mighty


see high and mighty.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.