Top Definition
unfaithfulness to a sexual partner.
Lack of loyalty or religious belief
作者 Mmm SeanPaul 2003年9月25日
Going outside of a monogomous relationship for sexual intercourse, companionship, or attention. Cheating.
Infidelity is a nicer way of saying my wife makes my tuna with other guys' mayonaise?
作者 needmaps 2012年3月08日
a threesome you weren't invited to
She said she wasn't committing an infidelity, just that I wasn't invited to this ménage à trois. She promises she'll take me alpine skiing with the next guy she picks up.
作者 partytrap 2013年2月24日
The state of being unfaithful, to either a partner, friend, co-worker, etc.
Kim: Did you hear that John cheated on Karen?
Sue: Yeah, John has some serious infidelity issues.
作者 suppakool#20 2011年12月07日
s a violation of a couple's assumed or stated contract regarding emotional and/or sexual exclusivity
most marriages end due to infidelity
作者 AOHARURIDE 2015年10月25日



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