Another word for impaired

An attack of illness in November 1900 seriously impaired his health.

The authority of the pontificate was seriously impaired by these circumstances.

Albania, the traditional claim of France to protect Roman Catholics in the Ottoman Empire has been greatly impaired by the non-religious character of the Republic. Like Italy, she is now regarded by Eastern Catholics with distrust as an enemy of the Holy Father.

Fichte's general views on philosophy seem to have changed considerably as he advanced in years, and his influence has been impaired by certain inconsistencies and an appearance of eclecticism, which is strengthened by his predominantly historical treatment of problems, his desire to include divergent systems within his own, and his conciliatory tone.

He obtained a high reputation, but his work was impaired by his controversial temper, which frequently developed into an irritated f anaticism, though he was always entirely sincere.