Doubtful
Doubtful adjective - Not feeling sure about the truth, wisdom, or trustworthiness of someone or something.
Off colour and doubtful are semantically related. In some cases you can replace phrase "Off colour" with "Doubtful", this terms are similar.
Off colour
Doubtful and off colour are semantically related. Sometimes you can use "Doubtful" instead an adjective phrase "Off colour".
Mutual synonyms
Cite this Source
Off colour and Doubtful. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/doubtful/off_colour
Doubtful & Off colour. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/doubtful/off_colour>.
Off colour or Doubtful. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/doubtful/off_colour.
Google Ngram Viewer shows how "doubtful" and "off colour" have occurred on timeline