undiscoverablyadv.
/ˌʌndᵻˈskʌv(ə)rəbli/, U.S. /ˌəndᵻˈskəv(ə)rəbli/ (un- prefix1 5.)
ΘΚΠ
the mind > mental capacity > knowledge > hiding, concealing from view > [adverb] > without possibility of discovery
undiscoverably1645
unapprehensivelya1659
indiscoverably1669
tracelessly1845
tracklessly1864
the mind > attention and judgement > discovery > [adverb] > able to be discovered > not
undiscoverably1645
unlocatably1986
1645 J. Milton Tetrachordon 58 He..permitted by accident the evil of them who divorc't against the lawes intention undiscoverably.
1680 C. Cotton Compl. Gamester (ed. 2) 12 How neatly and undiscoverably he managed his tricks.
1892 I. Zangwill Big Bow Myst. 171 To assassinate secretly, mysteriously, unintelligibly, undiscoverably.
This entry has not yet been fully updated (first published 1921; most recently modified version published online December 2020).
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adv.1645