Synonyms|768Antonyms|230|Broader|9Narrower|0Related|1.3k

104 entries under difficult topic. ×

0
scabrous(adjective, tough, rough, heavy)
0
stern(appearance, rough, terrible, hopeless)
0
testing(adjective, severe, violent, awkward)
0
unsparing(adjective, tough, rough, heavy)
For more, visit Formidable on Power Thesaurus
11 years ago|23k views|share |citing 
APASmart Define. (2015). formidable thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/formidable/thesaurus/synonyms
ChicagoSmart Define. 2015. "formidable thesaurus" https://smartdefine.org/formidable/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, formidable thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/formidable/thesaurus/synonyms>.
MLASmart Define. "formidable thesaurus" 17 July 2015. Web. 20 September 2026. <https://smartdefine.org/formidable/thesaurus/synonyms>