But when I dreaded it, she began to come, and do what I would, oppose to her what hardness I could, she could be so Sinisterly dreadful and unkind that it was like a knife in me.
"Aurora the Magnificent"
Gertrude Hall
And if thou commaunde with the sounde, it is convenient to make, that betwene the one waie and the other, there be so moche difference, that the one cannot be chaunged for the other: and if thou commaundest with the voice, thou oughteste to take heede, that thou flie the general voices, and to use the particulares, and of the particulars, to flie those, whiche maie be interpreted Sinisterly.
"Machiavelli, Volume I The Art of War; and The Prince"
Niccolò Machiavelli
The throng began to move away, for the gestures with which he indicated his meaning were made Sinisterly significant by the weapon which he swung.
"They of the High Trails"
Hamlin Garland