- Definitions|0
- Thesaurus|129
- Abbreviations|0
10 entries under adjective topic. ×
| complex(hard, difficult) | |
| difficult(hard, complex) | |
| hard(difficult, complex) | |
| intricate(hard, difficult, complex) | |
| knotty(hard, difficult, complex) | |
| perplexed(hard, difficult, complex) | |
| tough(hard, difficult, complex) | |
| complicated(hard, difficult, complex) | |
| deep(meaning, abstract) | |
| over one's head |
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| APA | Smart Define. (2015). hard to understand thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/hard_to_understand/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "hard to understand thesaurus" https://smartdefine.org/hard_to_understand/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, hard to understand thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/hard_to_understand/thesaurus/synonyms>. |
| MLA | Smart Define. "hard to understand thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/hard_to_understand/thesaurus/synonyms> |