Sinistrorsal :: Sinistrorsal (a.) Rising spirally from right to left (of the spectator); sinistrorse.
Sinistrorse :: Sinistrorse (a.) Turning to the left (of the spectator) in the ascending line; -- the opposite of dextrorse. See Dextrorse.
Sinistrous :: Sinistrous (a.) Being on the left side; inclined to the left; sinistral.
Sinistrously :: Sinistrously (adv.) In a sinistrous manner; perversely; wrongly; unluckily.