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Webster 1913 Edition

(sĭn′ĭs-trŭs-ly̆)

adv.

In a sinistrous manner; perversely; wrongly; unluckily.

With a tendency to use the left hand.

Many, in their infancy, are

sinistrously

disposed, and divers continue all their life left-handed.

Sir T. Browne.

adv.

Perversely; wrongly.

With a tendency to use the left as the stronger hand.

sinistrously ‎(comparative more sinistrously, superlative most sinistrously)

In a sinistrous manner; perversely; wrongly; unluckily.
With a tendency to use the left hand.
Many, in their infancy, are sinistrously disposed, and divers continue all their life left-handed. — Sir Thomas Browne.