| piece of cake(expression, adjective, idiom, quiet, clear) | |
| positive(certain, definite, obvious, distinctive) | |
| simple as ABC(expression, adjective, idiom, quiet, clear) | |
| smooth(adjective, quiet, clear, easy, plain) | |
| snap(adjective, quiet, clear, smooth, easy) | |
| trouble-free(adjective, easy, straightforward, uncomplicated) | |
| unambiguous(certain, definite, obvious, visible, distinctive) | |
| uncomplicated(adjective, quiet, clear, smooth, easy) | |
| undemanding(adjective, easy, straightforward, uncomplicated, trouble-free) | |
| unequivocal(certain, definite, obvious, visible, distinctive) | |
| unhidden | |
| uninvolved(adjective, quiet, clear, smooth, easy) | |
| univocal(certain, definite, obvious, distinctive) | |
| unmistakeable | |
| unsubtle | |
| untroublesome(adjective, quiet, clear, smooth, easy) |
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| APA | Smart Define. (2016). self-explanatory thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/self-explanatory/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "self-explanatory thesaurus" https://smartdefine.org/self-explanatory/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, self-explanatory thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/self-explanatory/thesaurus/synonyms>. |
| MLA | Smart Define. "self-explanatory thesaurus" 31 March 2016. Web. 25 September 2026. <https://smartdefine.org/self-explanatory/thesaurus/synonyms> |