English Reference
adjective · adverb

mighty

adj. · adv.
US /ˈmaɪti/ UK /mˈaɪti/ mighty

  1. 01 B2 Upper Intermediate

    adj.having great power, strength, or importance.

    adj.possessing great physical strength, political power, or social influence.

    Simple

    The mighty river carved a deep canyon through the rock over millions of years.

    In context

    The empire fell not to a mighty army, but to a series of internal economic failures and administrative corruption.

  2. 02 B2 Upper Intermediate Informal

    adj.very big or impressive in size.

    adj.notable for its great size, volume, or physical scale.

    Simple

    He took a mighty swing at the ball and hit it over the fence.

    In context

    With one mighty heave, the workers managed to shift the fallen timber away from the blocked entrance.

  3. 03 C1 Advanced InformalDialect

    adv.you use this to mean 'very' when you want to sound casual or old-fashioned.

    adv.functions as an intensifier meaning 'to a high degree'; typically restricted to colloquial or regional speech patterns.

    Simple

    That was a mighty fine meal you cooked for us tonight.

    In context

    The locals were mighty suspicious of any outsiders who arrived in town without a clear explanation for their visit.

    Usage

    Always placed immediately before the adjective it modifies.

    Teacher's tip

    This adverbial use is common in American Southern dialects and older literature; it may sound out of place in modern professional writing.

The drug lenacapavir is a mighty weapon against HIV.

NPR· 13 Aug 2026

Another mighty, all-purpose midfielder, Johnny Giles, went one better than Souness.

The Guardian· 26 Aug 2026

From Middle English mighty, mightie, mighti, myghty, miȝty, maȝty, from Old English mihtiġ, mehtiġ, meahtiġ, mæhtiġ (“mighty”), from Proto-West Germanic mahtīg (“mighty”), from Proto-Germanic mahtīgaz (“mighty”), equivalent to might + -y. Cognate with Scots michty, mychty, Saterland Frisian machtich, Dutch machtig, German Low German machtig, German mächtig, Swedish mäktig.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin gem-pro *mahtīgaz
Level B2 · Upper Intermediate
Frequency Common
Updated