weak constitution; weak body
Refers to a person's physical frailty or poor health. Often used in medical or descriptive contexts.
He has been physically weak since birth and often gets sick.
weak (organization, system); feeble
Describes an organization, system, or structure that is fragile, ineffective, or lacking strength. Common in news and analytical writing.
The company had a weak management system and quickly went bankrupt.
A feeble organization cannot adapt to major changes.
This company's financial foundation is weak.
The opposition remained a weak political party.