lapse
noun
a mistake resulting from inattention
Synonymsoversighta break or intermission in the occurrence of something
“a lapse of three weeks between letters”
a failure to maintain a higher state
verb
pass into a specified state or condition
“He sank into nirvana”
end, at least for a long time
“The correspondence lapsed”
drop to a lower level, as in one's morals or standards
Synonymsbackslidego back to bad behavior
“Those who recidivate are often minor criminals”
let slip
“He lapsed his membership”
pass by
“three years elapsed”
Source: WordNet 3.1, Princeton University
