- Definitions|0
- Thesaurus|85
- Abbreviations|0
55 entries under adjective topic. ×
| optional(extra, worthless, possible, pointless) | |
| unnecessary | |
| additional(casual, useless, extra, worthless) | |
| alternative(open, free, voluntary, elective) | |
| arbitrary(open, free, voluntary, elective) | |
| casual(useless, extra, worthless, unwarranted) | |
| chance(casual, useless, extra, worthless) | |
| discretional(open, free, voluntary, elective) | |
| discretionary(open, free, voluntary, elective) | |
| elective(open, free, voluntary) | |
| extra(open, free, unnecessary, superfluous) | |
| extraneous(casual, useless, extra, worthless) | |
| extrinsic(casual, useless, extra, worthless) | |
| facultative(open, free, voluntary, elective) | |
| no strings attached(expression, idiom, open, free) | |
| nonobligatory(open, free, voluntary, elective) | |
| not required(expression, idiom, open, free) | |
| prodigal(casual, useless, extra, worthless) | |
| uncritical(casual, useless, extra, worthless) | |
| undesirable(casual, useless, extra, worthless) |
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| APA | Smart Define. (2013). noncompulsory thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/noncompulsory/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "noncompulsory thesaurus" https://smartdefine.org/noncompulsory/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2013, noncompulsory thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/noncompulsory/thesaurus/synonyms>. |
| MLA | Smart Define. "noncompulsory thesaurus" 17 June 2013. Web. 23 September 2026. <https://smartdefine.org/noncompulsory/thesaurus/synonyms> |