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• s  associated by chance and not an integral part
  they had to decide whether his misconduct was adventitious or the result of a flaw in his character

• Basic reason for Poland's adventitious foreign policy is to be found not only in its geographical situation but also in its internal socio-political structure.
• The discovery of the diaries came at an adventitious moment (a fact that stirred cynical memories of similar "discoveries" about Irish rebels at an earlier date).
• Evolution is adventitious and not foresighted.