unrivallableunrivalableadj.
/(ˌ)ʌnˈrʌɪvləbl/, U.S. /ˌənˈraɪvələb(ə)l/ Now somewhat rare.
That cannot be rivalled.
ΘΚΠ
the world > relative properties > kind or sort > individual character or quality > quality of being special or extraordinary > [adjective] > incomparable, unparalleled, or unique
unilicheOE
makelessc1225
unevenlyc1230
peerlessc1330
alonea1382
uncomparablea1382
unoverpassablea1382
solea1398
incomparable1412
sans-peer1426
nonpareilc1450
invincible1509
matchless1530
inimitable1531
unmatchable1544
unmatched1548
unpassable1563
alonely1567
inequivalent1568
mateless1570
unparagonized1578
only1581
fellowlessa1586
unimitablea1586
compareless1590
incompared1590
immatchless1595
unequalized1596
nonsuch1598
paragonless1599
immatchable1601
unparalleled1601
uncompeered1602
unpeered1602
imparalleled1604
unpeerable1604
unrivalled1607
uncompanioned1608
unexampled1610
unsurmountable1611
unsurpassable1611
unparagoned1612
patternless1613
unpatterned1617
unique1618
unparallelable1621
parallelless1622
unmatchless1623
single1633
unexemplifieda1634
unsampleda1638
unequalled1639
imparallel1641
unparallel1645
unseconded1646
unexemplary1649
unaccessional1651
unequalable1659
uncome-at-able1694
rivalless1735
untouched1735
unexcelleda1800
unexceeded1813
sans-pareilly1818
unsurpassed1818
unrivallable1823
unapproachable1834
untranscendeda1849
insuperable1849
unbrothered1853
unapproached1856
insurpassable1859
untouchable1867
hors concours1884
1823 Lit. Melange 1 Jan. 4 What Newton was to philosophy they are to British poetry—the unrivalled and unrivallable lords.
1834 R. Southey Doctor I. 34 The present unique, unrivalled and unrivalable production.
1907 Conservator May 35/2 Become magnificent, unrivalable.
2000 Qualitative Sociol. Winter 389 This sense of mastery that you have over a piece of computer software is just astounding, it's just unrivalable in the real world.
This entry has been updated (OED Third Edition, December 2014; most recently modified version published online December 2021).
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adj.1823