It was not an Opera night, and no one was giving a party, so that Beaufort’s outing was undoubtedly of a clandestine nature.
But Mrs. Rushworth was "that kind of woman"; foolish, vain, clandestine by nature, and far more attracted by the secrecy and peril of the affair than by such charms and qualities as he possessed.
No more guileless-looking cabinet particulier ever offered its shelter to a clandestine couple: Archer fancied he saw the sense of its reassurance in the faintly amused smile with which Madame Olenska sat down opposite to him.
The idea of the stud-farm and the brougham horse had germinated in Archer’s mind on the very day when the Emerson Sillerton invitation had first been mentioned; but he had kept it to himself as if there were something clandestine in the plan, and discovery might prevent its execution.
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She is involved in clandestine intelligence operations.