Doubtful
//ˈdaʊtfəl//
Word Forms of "doubtful" (5 forms)
Adjective
| Form | Word | |
|---|---|---|
| Alternative | doubtfull | |
| Comparative | more doubtful | |
| Superlative | most doubtful |
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.