† unaˈccustomarily,adv.Obs. [un-1 11.] Unusually, abnormally. 1634T. Johnson Parey's Chirurg. xviii. vii. Wks. (1678) 417 These..are now suddenly and unaccustomarily supprest.1655Culpepper, etc. Riverius xiii. iii. 364 If the Belly be unaccustomarily bound, or loose.