- Definitions|2
- Thesaurus|934
- Abbreviations|0
95 entries under dull topic. ×
| blunt | |
| boorish | |
| cloddish | |
| colorless(adjective, flat, ordinary, dry) | |
| common(adjective, flat, ordinary, dry) | |
| commonplace(adjective, flat, ordinary, dry) | |
| dense | |
| depressing(adjective, boring, tedious, dreary) | |
| dim | |
| dismal(adjective, flat, stupid, ordinary) | |
| doltish | |
| draggy(adjective, quiet, slow, heavy) | |
| droning(adjective, flat, boring, tedious) | |
| dull as dishwater(expression, adjective, idiom, boring) | |
| dusty(adjective, boring, tedious, dreary) | |
| flat as pancake(expression, adjective, idiom, boring) | |
| ho hum(expression, adjective, flat, ordinary) | |
| lifeless(adjective, dry, boring, tedious) | |
| loutish | |
| mind-numbing(adjective, dry, boring, tedious) |
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| APA | Smart Define. (2015). soporific thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/soporific/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "soporific thesaurus" https://smartdefine.org/soporific/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, soporific thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/soporific/thesaurus/synonyms>. |
| MLA | Smart Define. "soporific thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/soporific/thesaurus/synonyms> |