bar sinister vs bastardy

bar sinister and bastardy both are nouns.

Word	Noun	Adjective	Verb	Adverb
bar sinister	Yes	No	No	No
bastardy	Yes	No	No	No

As nouns, bar sinister and bastardy are synonyms defined as:

bar sinister and bastardy: the status of being born to parents who were not married

Other synonyms of bar sinister include illegitimacy.

bar sinister (noun)	bastardy (noun)
a mark of bastardy; lines from top right to bottom left	the status of being born to parents who were not married
the status of being born to parents who were not married