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sleeplessness - 2 dictionary results

sleep⋅less

[sleep-lis]
–adjective
1. without sleep: a sleepless night.
2. watchful; alert: sleepless devotion to duty.
3. always active: the sleepless ocean.

Origin:
1375–1425; late ME; see sleep, -less


sleep⋅less⋅ly, adverb
sleep⋅less⋅ness, noun
sleep·less   (slēp'lĭs)   
adj.  
    1. Marked by a lack of sleep: a sleepless night.
    2. Unable to sleep.
  1. Always alert or active; never resting: a sleepless district of the city.
sleep'less·ly adv., sleep'less·ness n.
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