laughlessadj.
/ˈlɑːfləs/, /ˈlafləs/, U.S. /ˈlæfləs/ Devoid of laughter; mirthless, unamusing.
ΘΚΠ
the mind > emotion > suffering > dejection > melancholy > seriousness or solemnity > [adjective]
seinec1330
sober1362
unfeastlyc1386
murec1390
unlaughter-milda1400
sadc1400
solemnyc1420
solemned1423
serious1440
solemnc1449
solenc1460
solemnel?1473
moy1487
demure1523
grave1549
staid1557
sage1564
sullen1583
weighty1602
solid1632
censoriousa1637
(as) grave (also solemn, etc.) as a judge1650
untriumphant1659
setc1660
agelastic1666
austere1667
humourless1671
unlaughing1737
smileless1740
untriflinga1743
untittering1749
steady1759
dun1797
antithalian1818
dreich1819
laughterless1825
unsmiling1826
laughless1827
unfestive1844
sober-sided1847
gleeless1850
unfarcical1850
mome1855
deedy1895
button-down1959
buttoned-down1960
straight-faced1975
1827 ‘Officer in Army’ Poems 138 Men, and dogs, Once more grew pointless, jokeless, laughless, growlless.
1867 Littell's Living Age 23 Feb. 496/2 The laughless, speechless, everlasting silent system of the Trappist.
1915 Bricklayer, Mason & Plasterer July 98/2 Let us be happy that we are not called upon to observe a laughless day or aloveless day.
1968 F. Exley Fan's Notes iii. 112 He was being deprived of some of his laughless laughs.
2001 Sun 27 Jan. 42/3 Disturbing, drug-fuelled and ultimately laughless—this British comedy could best be described as ‘Peter's Friends on acid’.
This is a new entry (OED Third Edition, June 2011; most recently modified version published online March 2022).
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adj.1827