unrightfuladj.n.

OE Homily (Otho C.i) in Anglo-Saxon Eng. 26 (1997) 220 D[rihten gefreolsa me] fram unrihtfullum spræ[cum].

OE Homily (Junius 85/86) (Dict. Old Eng. transcript) Þa ðe gelome galaþ and þa unrihtfullan and þa arleasan.

c1300 St. Thomas Becket (Laud) l. 384 in C. Horstmann Early S.-Eng. Legendary (1887) 117 (MED) Þe furste tyme þat seint thomas ovtliche him with-seide, hit was for þe king a-ȝen pouere Men dude onriȝtful dede.

c1350 Apocalypse St. John: A Version (Harl. 874) (1961) 163 (MED) His name was treuþe & soþfast & he iuggeþ & fiȝtteþ aȝein þe vnriȝtful.

c1400 (?a1387) W. Langland Piers Plowman (Huntington HM 137) (1873) C. xi. l. 215 A rybaud þei engendrede and a gome vnryghtful.

1482 Monk of Evesham 85 The onrightful scheding of mennys blode.

1545 J. Bale Mysterye Inyquyte P. Pantolabus f. 15 Pylate the vnryghtfull iudge.

a1586 Sir P. Sidney Astrophel & Stella (1591) 53 A rightfull Prince by vnrightfull deeds a Tyrant groweth.

1606 G. W. tr. Justinus Hist. xxii. 84 Obiecting vnto them sometime their vnrightfull entrapping of Hanno.

1664 H. More Modest Enq. Myst. Iniquity iv. 11 Malicious or inconsiderate spirits, that..pass unrightfull censures upon what is at least allowable.

1791 W. Taylor tr. G. E. Lessing Nathan the Wise (1805) iv. 210 What therefore, Saladin, if you withdraw the maid at once from the unrightful [Ger. unrechtmäßigen] owner?

1840 Liberator 19 June 1/2 They aim at abolishing slavery by destroying all human authority, in which all unrightful authority is of course included; whereas their opponents seek only for the destruction of Slavery.

1880 J. McCarthy Hist. our Own Times IV. 336 The unrightful things that were sometimes done.

1934 H. H. Dodwell et al. Cambr. Shorter Hist. India 869 His readers were exhorted to consider how unrightful was the position of the foreigner in India and to ponder the actions of the great.

2012 Jrnl. (Newcastle) (Nexis) 9 Nov. 26 The rise of lager from the 1960s onwards was one of the biggest changes ever to hit the British beer world, the pretender earning an unrightful place as Britain's national drink over the next 40 or so years.