Debility and Lassitude

Debility

Debility noun - The quality or state of lacking physical strength or vigor.
Usage example: our grandmother's debility is due in large part to her advanced age

Lassitude is a synonym for debility in fatigue topic. In some cases you can use "Lassitude" instead a noun "Debility", when it comes to topics like frailty, exhaustion.

Nearby Word: debilitation

Lassitude

Lassitude noun - A complete depletion of energy or strength.
Usage example: our lassitude was such that we couldn't even be bothered to get more soda from the fridge

Debility is a synonym for lassitude in fatigue topic. You can use "Debility" instead a noun "Lassitude", if it concerns topics such as exhaustion.
Cite this Source
Lassitude and Debility. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/debility/lassitude
Debility & Lassitude. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/debility/lassitude>.
Lassitude or Debility. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/debility/lassitude.
Google Ngram Viewer shows how "debility" and "lassitude" have occurred on timeline