- Definitions|2
- Thesaurus|2.1k
- Abbreviations|0
382 entries under adjective topic. ×
| deep(noun, good, feeling, strong) | |
| serious(hard, difficult, complex, deep) | |
| esoteric(hard, easy, obscure, difficult) | |
| difficult(hard, complex, thoughtful, intellectual) | |
| hard(difficult, intense, complex, emotional) | |
| intense(strong, great, complete, severe) | |
| recondite(easy, obscure, deep, thoughtful) | |
| weighty(hard, difficult, complex, thoughtful) | |
| severe(hard, difficult, intense, complex) | |
| knotty(hard, difficult, complex) | |
| intricate(hard, difficult, complex) | |
| involved(hard, difficult, complex) | |
| tricky(hard, difficult, complex, cunning) | |
| complex(hard, difficult, tedious, demanding) | |
| laborious(hard, difficult, complex) | |
| abstruse(noun, easy, obscure, difficult) | |
| thorny(hard, difficult, complex) | |
| arduous(hard, difficult, complex) | |
| grave(hard, difficult, complex, greatness) | |
| grievous(hard, difficult, complex) |
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| APA | Smart Define. (2016). profound thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/profound/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "profound thesaurus" https://smartdefine.org/profound/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, profound thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/profound/thesaurus/synonyms>. |
| MLA | Smart Define. "profound thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/profound/thesaurus/synonyms> |