indecipherableadj.
/ɪndɪˈsʌɪfərəb(ə)l/ Incapable of being deciphered or made out.
ΘΚΠ
the mind > mental capacity > knowledge > secrecy, concealment > code, cipher > decoding, deciphering > [adjective] > incapable of decipherment
indecipherable1802
unbreakable1929
the mind > mental capacity > intelligibility > unintelligibility > inexplicableness > [adjective]
unplitable?c1425
unexplicable1532
inexplicable1546
subtle1547
irresolute1574
subtile1582
undissoluble1587
incomprehensible1604
unexpoundable1611
unfoldable1611
inexplainable1623
unsalvable1624
uninterpretable1625
indissolvable1637
unaccountable1643
inaccountable1647
unexplainablea1711
undecipherable1757
irresolvable1785
indecipherable1853
unconstruable1856
inconstruable1874
unravellable1881
1802 T. Jefferson Let. 18 Apr. in Writings (1984) 1104 A cipher..which..is the easiest to use, the most indecipherable..of any one I have ever known.
1853 J. Ruskin Stones of Venice II. iii. 50 Nor are the original features of the rest of the edifice altogether indecipherable.
1886 A. Evans in Archæol. XLIX. 143 A few words were indecipherable.
Derivatives
indeˌcipheraˈbility n.
ΘΚΠ
the mind > mental capacity > intelligibility > unintelligibility > inexplicableness > [noun]
inexplicableness1652
unexplicableness1662
unaccountableness1676
unaccountability1704
inexplicability1804
indecipherableness1806
indecipherability1894
unanalysability1941
1894 Westm. Gaz. 13 Sept. 8/2 Downright indecipherability [of handwriting].
indeˈcipherableness n.
ΘΚΠ
the mind > mental capacity > intelligibility > unintelligibility > inexplicableness > [noun]
inexplicableness1652
unexplicableness1662
unaccountableness1676
unaccountability1704
inexplicability1804
indecipherableness1806
indecipherability1894
unanalysability1941
1806 W. Taylor in J. W. Robberds Mem. W. Taylor (1843) II. 127 The indecypherableness of the story.
Draft additions September 2013
indeˈcipherably adv.
ΚΠ
1847 J. Craig New Universal Dict. Indecipherably, so as cannot be deciphered.
1914 Clearfield (Pa.) Progress 17 Nov. 3/2 The typewritten lines of the long message blurred and ran together almost indecipherably in Judith's vision.
2005 E. Barr Plan B (2006) xx. 197 Announcements rang out indecipherably.
This entry has not yet been fully updated (first published 1900; most recently modified version published online March 2018).
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adj.1802