chance
None of this is happening by chance: there are clear historical causes.
By chance, she happened to be studying in the city at the same time as me.
It's not by chance that the country is in the worst economic state that it has been for decades.
It was only when I read by chance a story in the paper that I learnt that they were married.
SMART Vocabulary: related words and phrases Chance and randomness
accident
accident of birth
aleatory
arbitrarily
arbitrariness
crapshoot
even money
fluke
fluky
fortuitous
luck
luck into something
more by accident than designidiom
more by luck than judgmentidiom
non-purposive
randomness
serendipitous
serendipitously
sortition
stumble into something