501 entries under adjective topic. ×

22
knotted(hard, difficulty, difficult, complex)
22
lumpish(hard, difficult, complex, ugliness)
22
robust(strong, hard, sound, tough)
22
sticky(hard, difficult, complex, awkward)
21
toilsome(hard, difficult, harsh, cruel)
21
lumpy(hard, rough, difficult, complex)
21
operose(hard, severe, difficult, violent)
21
taxing(hard, difficult, complex, rigorous)
20
cruel(strong, hard, tough, severe)
20
grinding(hard, difficult, harsh, cruel)
20
oppressive(hard, difficult, complex)
20
precarious(hard, difficult, informal, complex)
20
problematic(hard, difficult, delicate, uncertain)
20
tight(hard, difficult, complex)
19
backbreaking(hard, difficult, complex, awkward)
19
disturbing(hard, severe, difficult, unpleasant)
19
grievous(hard, tough, severe, difficult)
19
hard-nosed(strong, hard, tough, severe)
19
impossible(hard, difficulty, difficult, complex)
19
involved(hard, difficult, complex, awkward)
11 years ago|33k views|share |citing 
APASmart Define. (2015). rugged thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/rugged/thesaurus/synonyms
ChicagoSmart Define. 2015. "rugged thesaurus" https://smartdefine.org/rugged/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, rugged thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/rugged/thesaurus/synonyms>.
MLASmart Define. "rugged thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/rugged/thesaurus/synonyms>