sinister
sin.is.ter \'sin-*s-t*r, archaic s*-'nis-\ aj [ME sinistre, fr. L sinistr-,
sinister on the left side, unlu]cky, inauspicious archaic 1: UNFAVORABLE,
UNLUCKY obs 2: conveying misleading or detrimental opinion or advice
archaic 3: dishonestly underhanded : FRAUDULENT 4: singularly evil or
productive of evil : BAD, CORRUPTIVE 5a: of, relating to, or situated to
the left or on the left side of someth ing {bearing a bar ~} 5b: of ill
omen by reason of being on the left 6: presaging ill fortune or trouble :
OMINOUS 7: accompanied by or leading to disaster or unfavorable
developments ng evil or disaster. SINISTER applies to what threatens by
appearance or reputation to be formidably troublesome or dangerous in some
undisclosed way; BALEFUL imputes perniciousness or destructiveness to
something whether working openly or covertly; MALIGN applies to what is
inherently evil or harmful - sin.is.ter.ly av SYN syn SINISTER, BALEFUL,
MALIGN mean seriously threateni