The affair cost me many sleepless nights.
Source: tatoeba (48374)
Sleepless
//ˈsliːpləs//
Synonyms for "sleepless" (131 found)
Ranked by relevance and common usage.
Closest matches (27)
Strong matches (39)
Related words (65)
persistingpertinaciousploddingpluggingpreoccupiedpromptprudentqui vivequickraptreadyrelentlessresoluterestlessseduloussharpsharp eyedsharp-eyedsingle mindedsingle-minded
Show 44 more words
sloggingslumberlesssmartstablesteadfaststeadystrenuousstubborntenacioustirelessunabatingunblinkingunconquerableundauntedundiscouragedundroopingunfailingunfalteringunflaggingunflinchingunintermittinguninterruptedunnoddingunrelaxingunrelentingunremittingunsleepingunsparingunswervinguntiringunwaveringunweariedunwearyingunwinkingutterly attentivevehementvigilantwakefulwarywearilesswide awakewide-awakewith open eyeszealous
Adjective(1 words)
Related word relations
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
Synonyms
1 entriesderived
2 entriesderived from
2 entriesrelated to
2 entriessimilar
4 entriesTranslations
45 translations across 35 languages.
Ancient Greek
1 entries- ἄγρυπνος adj (absence of sleep)
Azerbaijani
1 entries- yuxusuz adj (absence of sleep)
Belarusian
1 entries- бяссо́нны adj (absence of sleep)
Bulgarian
1 entries- безсънен adj (absence of sleep)
Catalan
1 entries- insomne adj (absence of sleep)
Czech
1 entries- bezesný adj (absence of sleep)
Dutch
1 entries- slapeloos adj (absence of sleep)
Esperanto
1 entries- sendorma adj (absence of sleep)
Finnish
1 entries- uneton adj (absence of sleep)
French
1 entries- insomniaque adj (absence of sleep)
Georgian
4 entries- გამოუძინებელი adj (absence of sleep)
- უძილარი adj (absence of sleep)
- უძილო adj (absence of sleep)
- უძინარი adj (absence of sleep)
German
1 entries- schlaflos adj (absence of sleep)
Hindi
2 entries- अनिद्रा adj (absence of sleep)
- उन्निद्र adj (absence of sleep)
Hungarian
1 entries- álmatlan adj (absence of sleep)
Ingrian
1 entries- unetoin adj (absence of sleep)
Japanese
1 entries- 寝不足 adj (absence of sleep)
Kazakh
1 entries- ұйқысыз adj (absence of sleep)
Kyrgyz
1 entries- уйкусуз adj (absence of sleep)
Latin
2 entries- insomnis adj (absence of sleep)
- insopor adj (absence of sleep)
Manx
1 entries- sheer-ghooisht adj (absence of sleep)
Middle English
1 entries- sleples adj (absence of sleep)
Māori
2 entries- koheko adj (absence of sleep)
- whakawhetū adj (absence of sleep)
Norwegian Bokmål
1 entries- søvnløs adj (absence of sleep)
Ottoman Turkish
2 entries- اویقوسز adj (absence of sleep)
- سهران adj (absence of sleep)
Plautdietsch
1 entries- schloplooss adj (absence of sleep)
Polish
1 entries- bezsenny adj (absence of sleep)
Portuguese
1 entries- insone adj (absence of sleep)
Romanian
1 entries- nedormit adj (absence of sleep)
Russian
1 entries- бессо́нный adj (absence of sleep)
Spanish
4 entries- de desvelo adj (absence of sleep)
- desvelado adj (absence of sleep)
- en vela adj (absence of sleep)
- sin dormir adj (absence of sleep)
Swedish
1 entries- sömnlös adj (absence of sleep)
Tagalog
1 entries- puyat adj (absence of sleep)
Turkish
1 entries- uykusuz adj (absence of sleep)
Ukrainian
1 entries- безсо́нний adj (absence of sleep)
Welsh
1 entries- di-gwsg adj (absence of sleep)
Sample sentences
11 total sentences available.
He was pale with fatigue after his sleepless night.
Source: tatoeba (324049)
He spent another sleepless night watching television.
Source: tatoeba (543282)
Tom spent a sleepless night thinking of Mary.
Source: tatoeba (2439255)
Showing 4 of 11 available sentences.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.