Inauspicious, ominous, unlucky, illegitimate (as in bar sinister). / Evil or seemingly evil; indicating lurking danger or harm. / (archaic) Of the left side.

The state or condition of being sinister.

(heraldry) A diagonal band on a coat of arms going from top right to bottom left (as you look at it), held to indicate bastardy.

Alternative form of bar sinister

(heraldry) A kind of bend sinister, in which a narrow strip extends from the lower left to the upper right of the shield in a coat of arms but does not extend to the edges of the shield

Alternative form of bar sinister

(heraldry, considered nonstandard) A bend sinister or baton sinister in a coat of arms. / (idiomatic, euphemistic) The state or characteristic of having been born out of wedlock; illegitimacy; bastardy.

plural of baton sinister

plural of bend sinister

plural of bar sinister