Lassitude

//ˈlæsɪˌtjuːd// noun

noun ·Moderate ·College level

Definitions

Noun
  1. 1
    Lethargy or lack of energy; fatigue, languor, listlessness countable, uncountable

    "Rufus Dawes, though his eyelids would scarcely keep open, and a terrible lassitude almost paralysed his limbs, eagerly drank in the whispered sentence."

  2. 2
    weakness characterized by a lack of vitality or energy wordnet
  3. 3
    a feeling of lack of interest or energy wordnet
  4. 4
    a state of comatose torpor (as found in sleeping sickness) wordnet

Synonyms

All synonyms
languorlethargyacediaadynamiaanemiaapathy

Example

More examples

"Counterintuitively, the cure for my lassitude was exercise."

Etymology

Borrowed from French lassitude, from Latin lassitūdō (“faintness, weariness”), from lassus (“faint, weary”), perhaps for *ladtus, and thus akin to English late.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.