infirm
UK: ɪnˈfɜːm | US: ɪnˈfɜːrm
adj. physically or mentally weak
adj. lacking stability or firmness
n. (archaic) a person who is weak or ill
infirm = in<not> + firm<strong>
- in: A Latin prefix meaning "not" or "without," often used to negate the root word.
- firm: From Latin firmus, meaning "strong, stable, or steadfast."
Etymology Origin:
The word "infirm" originates from Latin infirmus, combining in- (negation) and firmus (strong). It initially described physical weakness but later expanded to include mental or structural instability. The logic follows a clear opposition: "not strong" → "weak." This duality reflects in modern usage, covering both health and abstract fragility.
The infirm old man needed assistance to walk.
Her infirm resolve made her vulnerable to peer pressure.
The bridge’s infirm structure posed a safety risk.
(Archaic) The hospital cared for the infirm and dying.
His infirm arguments failed to convince the committee.