Harmful

//ˈhɑːmfl̩//

Word Forms of "harmful" (5 forms)

Adjective
Alternativeharmfull
Comparativeharmfuller
Comparativemore harmful
Superlativeharmfullest
Superlativemost harmful

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.