Weakness or asthenia is a symptom of a number of different conditions.

Weakness may also refer to:

Muscle weakness, the inability to exert force with one's muscles The Weakness, the thirty-seventh book in the Animorphs series "Weakness", a song by Opeth from Damnation "Weakness", a song by Seulgi from Accidentally on Purpose "Weakness", a song by The Wanted from The Wanted The Weakness (album), 2023 album by Ruston Kelly

See also

Weak (disambiguation) Akrasia, also known as "weakness of will" Drawback (disambiguation) Facial weakness Fatigue (medical) Somnolence Strength (disambiguation) Vulnerability