happening+by+chance
131adventitious — ad|ven|ti|tious [ˌædvənˈtıʃəs, ˌædven ] adj formal happening by chance = ↑unexpected >adventitiously adj …
132casual — cas|u|al [ˈkæʒuəl] adj ▬▬▬▬▬▬▬ 1¦(relaxed)¦ 2¦(not formal)¦ 3¦(work)¦ 4¦(relationship)¦ 5¦(without attention)¦ 6¦(not planned)¦ 7¦(not regular)¦ ▬▬▬▬▬▬▬ [Date: 1300 1400; : Old French; Origin: casuel, from Late Latin casualis, from Latin …
