87 entries under expression topic. ×
| like it is(idiom, open, honest, true) | |
| lost in thought(adjective, idiom, reasonable, thoughtful) | |
| mean business(adjective, sober, resolute, persistent) | |
| no fooling(honest, true, straightforward, earnest) | |
| not turn a hair(adjective, idiom, calm, relaxed) | |
| of moment(big, significant, substantial, valuable) | |
| of note(big, significant, substantial, valuable) | |
| of substance(big, significant, substantial, valuable) | |
| on ice(adjective, resolute, persistent, unwavering) | |
| on the level(idiom, open, honest, true) | |
| on the line(honest, true, straightforward, earnest) | |
| on up and up(honest, true, straightforward, earnest) | |
| out for blood(adjective, idiom, weighty, aper) | |
| playing hard ball(adjective, idiom, great, heavy) | |
| set on(adjective, firm, resolute, persistent) | |
| something else(adjective, unusual, important, famous) | |
| strictly business(adjective, great, heavy, weighty) | |
| sure enough(honest, true, straightforward, earnest) | |
| sure of oneself(adjective, idiom, calm, relaxed) | |
| toned down(adjective, calm, quiet, gentle) |
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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> |