Meaning of FAILURE in English

FAILURE

[noun] [U + to infinitive]His failure to (= The fact that he did not) return her phone call told her that something was wrong.Failure to keep the chemical (= Not keeping it) at the right temperature could lead to an explosion.See also failure at fail (NOT SUCCEED), fail (STOP).

Cambridge English vocab.      Кембриджский английский словарь.