accidentally, by chance; unanimously, by consensus

accident, collision, incident, chance, coincidence, encounter

by chance, coincidentally, accidentally

by chance, coincidental, coincidentally, accidental, accidentally

chance, opportunity, luck ??

upper, outside, external, foreign, someone else’s, another’s

upper, outside, external, foreign, someone else’s, another’s

external, foreign, exterior, outside

revealed, evident, obvious, apparent; external, surface

obvious, apparent; external, surface

characteristic, feature, specialty, virtue

characteristic, nature, property; special, excellent, choice (w/ plural: nobels / upper class people)

characteristic

natural character, innate or inborn characteristic

essence, substance, nature, characteristic