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“unaccountably”
unaccountably (adverb), more unaccountably, most unaccountably
Concerning something that is not able to be explained or understood: Wilber's father said that he felt unaccountably good when he got up that morning.
This entry is located in the following units:
-ably
(page 13)
put-, puta-, -pute, -puter, -puting, -putate, -putation, -putative
(page 7)