v. give hint or indication of something; disclose partially or guardedly; overshadow; shade
Her constant complaining about the job would adumbrate her intent to leave.
Sentence in Classic:
Nevertheless Chichikov rejoined that the kind of scheme or transaction which he had adumbrated in no way clashed with the Civil Statutes and Provisions of Russia; to which he added that the Treasury would even BENEFIT by the enterprise, seeing it would draw therefrom the usual legal percentage.
Dead Souls By Nikolai Vasilievich Gogol Context