Sinistrously /(sĭn"ĭs*trŭs*ly̆)/
Sin·is·trous·ly
Sinistrously
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.