See supposed in American Heritage Dictionary 4 Synonyms
supposed conjectural hypothetical putative reputed suppositious supposititious
These adjectives mean put forth or accepted as being true on inconclusive grounds: the supposed cause of inflation; conjectural criticism; the hypothetical site of a lost culture; a foundling's putative father; the reputed author of the article; suppositious reconstructions of dead languages; supposititious hypotheses.
Antonym: certain
See supposed in Webster's New World Roget's A-Z Thesaurus II
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