87 entries under expression topic. ×
| twenty-four carat(honest, true, straightforward, earnest) | |
| uphill battle(adjective, tough, rough, difficult) | |
| according to standards | |
| big deal(big, heavy, substantial) | |
| carrying a lot of weight(idiom, important, noteworthy) | |
| coarse whetstone | |
| cold fish(adjective, calm, restrained, subdued) | |
| deep in thought(adjective, idiom, pensive, reflective) | |
| down in the mouth(idiom, quiet, gentle, restrained) | |
| falling all over oneself(adjective, idiom, warm, enthusiastic) | |
| far gone(idiom, greatness) | |
| financially sound | |
| for real(adjective, sober, solemn) | |
| generally admired | |
| go great guns(adjective, idiom, warm, enthusiastic) | |
| goody two-shoes(adjective, passionate, ardent, sincere) | |
| hard as nails(idiom, resolute, persistent, driven) | |
| hundred percent(adjective, total, passionate, enthusiastic) | |
| important famous(unusual, outstanding, prominent, distinguished) | |
| laid back(somber, decorous) |
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| APA | Smart Define. (2016). serious thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/serious/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "serious thesaurus" https://smartdefine.org/serious/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, serious thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/serious/thesaurus/synonyms>. |
| MLA | Smart Define. "serious thesaurus" 24 February 2016. Web. 22 September 2026. <https://smartdefine.org/serious/thesaurus/synonyms> |