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unreasonable behaviour

British  

noun

  1. law conduct by a spouse sufficient to cause the irretrievable breakdown of a marriage

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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A number of other allegations relating to unreasonable behaviour by Mr Byrne and pressure to work excessive hours were not upheld, the report found.

From BBC ● Apr. 28, 2022

Under the old rules in England and Wales, anyone who wanted to split swiftly had to accuse their partner in a divorce petition of desertion, adultery or unreasonable behaviour.

From BBC ● Apr. 5, 2022

Currently in order to start divorce proceedings immediately, one spouse has to allege adultery, unreasonable behaviour or desertion has taken place.

From BBC ● Jun. 8, 2020

Many of these can explain bizarre or unreasonable behaviour in people, so there’s plenty of options that should be considered before you start claiming a clinical diagnosis.

From The Guardian ● May 10, 2017

This unreasonable behaviour of the weather, however, could displease no one else in Hayslope besides Mr. Craig.

From Adam Bede by George Eliot

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