16 entries under difficult topic. ×

13
dire(adjective, tough, awful, terrible)
10
fearful(adjective, tough, awful, terrible)
8
appalling(adjective, tough, awful, terrible)
8
terrible(adjective, tough, awful, fear)
7
dreadful(adjective, tough, awful, terrible)
7
frightful(adjective, tough, awful, terrible)
7
horrible(adjective, tough, awful, terrible)
7
horrific(adjective, tough, awful, terrible)
6
awful(tough, terrible, fear, dreadful)
6
tremendous(adjective, tough, awful, terrible)
4
great(adjective, respect, tough, knowledge)
4
shocking(adjective, tough, awful, terrible)
3
powerful(adjective, tough, vigorous, noble)
1
indomitable(tough, determined, vigorous, noble)
1
puissant(tough, vigorous, noble, stout)
0
overwhelming(tough, awful, terrible, strange)
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APASmart Define. (2016). redoubtable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/redoubtable/thesaurus/synonyms
ChicagoSmart Define. 2016. "redoubtable thesaurus" https://smartdefine.org/redoubtable/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, redoubtable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/redoubtable/thesaurus/synonyms>.
MLASmart Define. "redoubtable thesaurus" 2 March 2016. Web. 21 September 2026. <https://smartdefine.org/redoubtable/thesaurus/synonyms>