without rhyme or reason

Also found in: Idioms.
See: irrational
References in periodicals archive ?
When cancer strikes it strikes hard, often without rhyme or reason, or any care for the impact it has on an individual and loved ones.
They say "I am not the first and I certainly won't be the last person to do something without rhyme or reason.
I suppose some people just like to hate without rhyme or reason and skin colour is as good an excuse as any.