reducelessadj.
/rᵻˈdjuːsləs/, /rᵻˈdʒuːsləs/, U.S. /rəˈd(j)usləs/, /riˈd(j)usləs/ literary and rare.
That cannot be reduced; irreducible.
ΘΚΠ
the world > time > change > absence of change, changelessness > [adjective]
fasteOE
inunvariable1535
uniform1559
changeless1575
unvariant1582
wasteless1589
unchanging1595
inherent1601
unselfchanging1605
shiftless1606
ne'er-changinga1616
waxlessa1618
immutable1621
equal1626
irreducible1633
indiminishable1641
imprevaricable1644
Median1649
undiminishable1653
assiduous1661
unvarying1690
unfluctuating1723
unrelapsing1740
stable1742
unarbitrary1793
untransferable1794
unaltering1813
constant1817
all-or-nothing1853
all-or-none1864
reducelessc1864
unaugmentable1868
invariant1874
inadaptive1886
plateaued1899
steady state1909
hardcore1951
homoeostatic1955
monochromatic1959
the world > space > extension in space > reduction in size or extent > [adjective] > not
wanelessa1618
reducelessc1864
c1864 E. Dickinson Poems (1955) II. 641 As an Estate perpetual Or a reduceless Mine.
1954 W. Faulkner Fable 16 They wore..the same regimental numerals, to the rest of the regiment which had not only preceded them by that reduceless gap but which had even seemed to be fleeing from them.
This entry has been updated (OED Third Edition, September 2009; most recently modified version published online March 2022).
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adj.c1864