A weak government has no power to handle the crisis.
Tips
register
Literary/written register. Stronger and more vivid than plain 弱 — implies fragility from constitution rather than circumstance. Used both for people (sickly bodies) and abstract things (weak forces, feeble economies).
memory
孱 (chán) on its own already means 'weak/feeble'. Doubling the meaning with 弱 (ruò, also 'weak') intensifies the sense — the same pattern as 强壮 'strong-robust'.