I . ad.
1.
Secretly, privately, clandestinely, ~edly, in a clandestine manner, by secret means.
2.
Fraudulently, by fraudulent means, surreptitiously, unfairly.
II . a.
Secret, sly, clandestine, disingenuous, unfair, fraudulent, ~ed, surreptitious.
I . ad.
1.
Secretly, privately, clandestinely, ~edly, in a clandestine manner, by secret means.
2.
Fraudulently, by fraudulent means, surreptitiously, unfairly.
II . a.
Secret, sly, clandestine, disingenuous, unfair, fraudulent, ~ed, surreptitious.
Soule. Dictionary of English synonyms. Словарь английских синонимов. 2012