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Webster 1913 Edition

Adj.

[See

Being on the left side; inclined to the left; sinistral.

“Sinistrous gravity.”

Sir T. Browne.

Wrong; absurd; perverse.

A knave or fool can do no harm, even by the most

sinistrous

and absurd choice.

Bentley.

Adj.

Being on the left side; inclined to the left.

Wrong; absurd; perverse. A knave or fool can do no harm, even by the most sinistrous and absurd choice.

sinistrous ‎(comparative more sinistrous, superlative most sinistrous)

(archaic) On the left side; inclined to the left; sinistral.
Sinistrous gravity. — Sir Thomas Browne.
(archaic) wrong; absurd; perverse
A knave or fool can do no harm, even by the most sinistrous and absurd choice. — Bentley.