Very great, important, powerful, extensive, etc.
Very small; diminutive
The definition of puny is something insufficient in size or strength.
Of great extent or amount
Very great in scope or import:
Having great binding strength:
Imposing because of great size, beauty, and extent; magnificent
Lacking persuasiveness; unconvincing:
Lacking vigor or effectiveness; inadequate:
Having great strength or force:
Find another word for mightier. In this page you can discover 13 synonyms, antonyms, idiomatic expressions, and related words for mightier, like: huger, abler, tinier, punier, larger, greater, vaster, stronger, grander, weaker and plainer.