English Lexicon

Sleepiness

/ˈsliː.pɪ.nəs/
nounCEFR B1 (Intermediate)Top #1500 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    The state of being drowsy or ready to sleep.

    "After a long day at work, I felt a wave of sleepiness wash over me."
  2. 2

    A condition characterized by a strong desire to sleep.

    "The sleepiness I experienced during the lecture made it hard to concentrate."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

The word 'sleepiness' originates from the Old English 'slǣp', meaning 'sleep', combined with the suffix '-iness' which denotes a state or condition. The term has evolved through Middle English and has been used since the 14th century to describe the quality of being sleepy.

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