Doubtful
Doubtful adjective - Not feeling sure about the truth, wisdom, or trustworthiness of someone or something.
Negligible and doubtful are semantically related. In some cases you can use "Negligible" instead an adjective "Doubtful".
Negligible
Negligible adjective - So small or unimportant as to warrant little or no attention.
Doubtful and negligible are semantically related. Sometimes you can use "Doubtful" instead an adjective "Negligible".
Nearby Word: negligibility
Cite this Source
Negligible and Doubtful. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/doubtful/negligible
Doubtful & Negligible. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/doubtful/negligible>.
Negligible or Doubtful. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/doubtful/negligible.
Google Ngram Viewer shows how "doubtful" and "negligible" have occurred on timeline