WordNet: casual, chance
occurring or appearing or singled out by chance; "seek help from casual passers-by"; "a casual meeting"; "a chance occurrence"
- similar to unplanned
casual
- (englanti) casualness (derivationally related)
- (suomi) satunnainen (synonyymi)
chance
- (suomi) sattumalta (synonyymi; <idiomatic_pos/>)