adamantlyadv.
/ˈadəm(ə)ntli/, U.S. /ˈædəmən(t)li/ Unwaveringly, resolutely; in a manner which suggests one will not be persuaded to change one's mind.
ΘΚΠ
the mind > will > decision > constancy or steadfastness > [adverb]
anredlyOE
fastlyOE
steadfastly?c1225
stifflyc1290
stably1297
steadfasta1300
stoutly1303
steevely1340
sadlya1375
sturdilyc1374
firm1377
surelyc1380
like a flint1382
tough1398
firmlyc1425
unmovablyc1425
but variancec1430
sad?c1430
immovably1435
toughlyc1450
affirmlya1513
wishly1530
constantly1534
steadily1540
fall back (also flat), fall edge?1553
staidly1571
fixedly1605
indeclinably1624
undeclinably1662
unfalteringly1665
unswervingly1805
unwaveringly1830
indomitably1837
rockily1846
unbendingly1847
indivertibly1853
unshakeablya1864
undyingly1881
unshakenly1882
adamantly1897
1897 Suppl. to Afr. Critic (LSE Selected Pamphlets) 2 Oct. p. xlvii/1 And the Perch in meditation Lay and gazed upon the worm—But against that cold collation He was adamantly firm.
1961 Sunday Times 2 July 32/1 ‘When it's a girl her mother should be the one interviewed,’ he stated adamantly.
1994 Minnesota Monthly July 43/2 A company executive adamantly refused to comment about the negotiations.
2007 Independent 12 May (Mag.) 38/2 Pleading and reasoning with my adamantly paranoid mother.
This entry has been updated (OED Third Edition, December 2011; most recently modified version published online December 2021).
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adv.1897