Formidable
Formidable adjective - Causing fear.
Unfavourable and formidable are semantically related. In some cases you can use "Unfavourable" instead an adjective "Formidable".
Nearby Word: formidably
Unfavourable
Unfavourable adjective - Not favorable.
Formidable and unfavourable are semantically related. Sometimes you can use "Formidable" instead an adjective "Unfavourable".
Mutual synonyms
Cite this Source
Unfavourable and Formidable. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/formidable/unfavourable
Formidable & Unfavourable. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/formidable/unfavourable>.
Unfavourable or Formidable. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/formidable/unfavourable.
Google Ngram Viewer shows how "formidable" and "unfavourable" have occurred on timeline