Sinistrous
Pronunciation : Sin"is*trous
Part of Speech : a.
Etymology : [See Sinister.]
Definition : 1. Being on the left side; inclined to the left; sinistral. "Sinistrous gravity." Sir T. Browne.
2. Wrong; absurd; perverse. A knave or fool can do no harm, even by the most sinistrous and absurd choice. Bentley.
Source : Webster's Unabridged Dictionary, 1913