Doubtful
Doubtful adjective - Not feeling sure about the truth, wisdom, or trustworthiness of someone or something.
Flat-out
Flat-out adjective - Having no exceptions or restrictions.
Usage example: regarded their son-in-law as a flat-out loser and let him know it
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Synonyms for Flat-out
Both words in one sentence
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It's doubtful the school was paying him to show up to classes, given how grievous his resume-falsifying was, and he flat-out tells Jeff that his wife kicked him out in "Early 21st Century Romanticism," depriving him of whatever income she had.
Source: Series / Community
Cite this Source
Flat-out and Doubtful. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/doubtful/flat-out
Doubtful & Flat-out. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/doubtful/flat-out>.
Flat-out or Doubtful. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/doubtful/flat-out.
