sinistral
\ SIN-uh-struhl \, adjective;
1.left-handed.
2.of, pertaining to, or on the left side; left (opposed to dextral).
3.(of certain gastropod shells) coiling counterclockwise, as seen from the apex.
Quotes:
During our years of separation (quite painless for us both), he had changed from a poor, wiry student with animated, night-dark eyes and a beautiful, strong, sinistral handwriting into a dignified, rather corpulent gentleman…
-- Vladimir Nabokov, "Ultima Thule," The New Yorker , April 7, 1973
Useful though the confirmation was--Constantin had noticed Malek apparently trying to conceal his left-handedness during their meals and when opening and closing the windows--he found this sinistral aspect of Malek's personality curiously disturbing, and indication that there would be nothing predictable about his opponent, or the ensuing struggle of wits between them.
-- J.G. Ballard, "End Game," The Terminal Beach , 1964
Origin:
Sinistral is related to the word sinister and meant "unlucky" when it entered English in the 1400s. It was extended to mean "on the left side" in the early 1800s.
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