Formidable
Formidable adjective - Causing fear.
Unfriendly and formidable are semantically related. In some cases you can use "Unfriendly" instead an adjective "Formidable".
Nearby Word: formidably
Unfriendly
Unfriendly adjective - Lacking in friendliness or warmth of feeling.
Formidable and unfriendly are semantically related. Sometimes you can use "Formidable" instead an adjective "Unfriendly".
Nearby Word: unfriendliness
Cite this Source
Unfriendly and Formidable. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/formidable/unfriendly
Formidable & Unfriendly. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/formidable/unfriendly>.
Unfriendly or Formidable. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/formidable/unfriendly.
Google Ngram Viewer shows how "formidable" and "unfriendly" have occurred on timeline