Sinistrous (archaic) for Sinister. Also can be used as an adverb, possesses a comparative meaning between the two. Also, see Sinistral
Person A: I've heard that Vlad Tepes, the 3rd, was a sinistrous bloodshed, whom had a ritual to impale all his enemies, and make a deadshow off of it.

Person B: Yes, that's a known fact. He was named Dracula for a reason!
by moozymathers January 11, 2019
Get the Sinistrous mug.
prejudice, discrimination, or antagonism by an individual, community, or institution against a person or people on the basis of their cerebral lateralization, or left-handed and including mixed-handed individuals.
Society through Higher Education exhibits sinistralism by not screening left and mixed handed students for communication related learning disabilities which hinder their graduation rates and therefore socioeconomically disadvantaging that minority group.
by Sinistral-slayer October 13, 2023
Get the Sinistralism mug.
An arrogant fascist with an inflated opinion of himself. Usually holds power over a chatroom or internet forum and seems to think that makes him a deity. Feels a constant need to demonstrate his supposed superiority by attempting to belittle and humiliate others. Doesn't really care about anyone but himself, and once someone stops worshipping him he will treat them like he does everyone else.
Goddamn Sinistral! Who the fuck does he think he is?!
by Elyseon May 10, 2008
Get the Sinistral mug.
A human being, that, when pissed off, has the unique ability to recite every bit of cussing from a Jerry Springer show.
When Sinistral got really pissed off, he $%#% the little mother $%#%er and $%#%ed him up his $%#%#ing $#@$# $%##%$# #%$#% #%!%@ &%^&% !$^ %^& !#@$ $5^#$^ ##%$#
by Xelopheris March 17, 2003
Get the Sinistral mug.