tolerance
US /ˈtɑː.lɚ.əns/
UK /ˈtɑː.lɚ.əns/

1.
the ability or willingness to tolerate the existence of opinions or behavior that one dislikes or disagrees with
:
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Religious tolerance is essential for a peaceful society.
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She has a high level of tolerance for different viewpoints.
2.
the capacity of the body to endure or become less responsive to a substance (such as a drug) or a physiological stress
:
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He developed a tolerance to the pain medication.
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The plant has a high tolerance to drought conditions.