- Definitions|1
- Thesaurus|214
- Abbreviations|0
23 entries under noun topic. ×
| wakefulness(activity, restlessness, insomnia) | |
| insomnia(activity, restlessness, inability) | |
| restlessness(activity, insomnia) | |
| vigilance(activity, insomnia) | |
| insomniac | |
| vigil | |
| insomnolence | |
| restiveness | |
| tension(worry, strain, anxiety, stress) | |
| indisposition | |
| nerves | |
| uneasiness | |
| unrest | |
| disquietude | |
| extreme anxiety(expression, worry, strain, anxiety) | |
| fretfulness(worry, strain, anxiety, stress) | |
| hysteria(worry, strain, anxiety, stress) | |
| imbalance(worry, strain, anxiety, stress) | |
| irritation(worry, strain, anxiety, stress) | |
| nervousness(worry, strain, anxiety, stress) |
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| APA | Smart Define. (2015). sleeplessness thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/sleeplessness/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "sleeplessness thesaurus" https://smartdefine.org/sleeplessness/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, sleeplessness thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/sleeplessness/thesaurus/synonyms>. |
| MLA | Smart Define. "sleeplessness thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/sleeplessness/thesaurus/synonyms> |