happenstance
HAP-un-stansnounMeaning a chance happening; a coincidence
Memory hook HAPPEN + circumSTANCE. Two strangers reach for the very last loaf of bread at the same moment and end up sharing a picnic; their meeting just happened, by happenstance.
By happenstance, the two cousins ended up in the same college dorm.
In context Their friendship began through happenstance, not planning: both had grabbed the same umbrella from the lost-and-found box on the same rainy afternoon.
Similar chance, coincidence, accident, fluke
Opposite plan, design, intention
A blend of happen and circumstance.