89 entries under significant topic. ×
| needful(adjective, essential, basic, vital) | |
| obligatory(adjective, important, essential, critical) | |
| compulsory(adjective, important, essential, critical) | |
| dangerous(adjective, bad, severe, serious) | |
| paramount(adjective, direct, prompt, big, important) | |
| primary(adjective, big, substantial, valuable) | |
| requisite(adjective, important, essential, critical) | |
| wanted(adjective, essential, basic, vital) | |
| chief(adjective, great, big, substantial) | |
| foremost(adjective, vital, earnest, insistent) | |
| heavy(adjective, tough, severe, informal, big) | |
| mandatory(adjective, essential, basic, vital) | |
| needed(adjective, important, essential, critical) | |
| principal(adjective, great, big, substantial) | |
| salient(adjective, big, substantial, valuable) | |
| consequential(adjective, clear, heavy, important) | |
| decisive(adjective, severe, big, important) | |
| hazardous(adjective, bad, heavy, serious) | |
| perilous(adjective, bad, heavy, serious) | |
| substantial(adjective, big, valuable, vital) |
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| APA | Smart Define. (2015). urgent thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/urgent/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "urgent thesaurus" https://smartdefine.org/urgent/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, urgent thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/urgent/thesaurus/synonyms>. |
| MLA | Smart Define. "urgent thesaurus" 3 August 2015. Web. 27 September 2026. <https://smartdefine.org/urgent/thesaurus/synonyms> |