Formidable
Formidable adjective - Causing fear.
Headache and formidable are semantically related. In some cases you can use "Headache" instead an adjective "Formidable".
Nearby Word: formidably
Headache
Headache noun - A dull, unpleasant, or difficult piece of work.
Formidable and headache are semantically related. Sometimes you can use "Formidable" instead an adjective "Headache".
Nearby Word: headachy
Mutual synonyms
Cite this Source
Headache and Formidable. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/formidable/headache
Formidable & Headache. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/formidable/headache>.
Headache or Formidable. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/formidable/headache.
Google Ngram Viewer shows how "formidable" and "headache" have occurred on timeline