US /ʌnˈsliːpɪŋ/ UK /ʌnˈsliːpɪŋ/
adj Freq #241711

Meanings

  1. 1
    adj

    not sleeping or unable to sleep

    She remained unsleeping until dawn.

  2. 2
    adj

    constantly alert, watchful, or active

    The police maintained unsleeping vigilance around the laboratory.

Thesaurus

Synonyms
1 adj · not sleeping or unable to... awakewakeful
2 adj · constantly alert, watchful,... vigilantever-watchfulunceasing
Opposites
sleepingdormantunwatchful
Word family
Related forms sleeplesswakeful

Etymology

From un- + sleeping. The literal sense means awake; the literary figurative sense describes vigilance, activity, or attention that never rests.

Topics

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