What is the Latin word for illustriously?

The usual Latin words for “illustriously” are īnsignis, ēgregius, eximius; also improbus. The right choice depends on the sense; see the distinctions below.

English → Latin

“illustriously” in Latin

īnsignisextraordinary; obvious; distinguished, famous ēgregiusdistinguished, excellent, eminent; illustrious, honorable eximiusselect, choice; special, particular, exceptional, remarkable, extraordinary; exempt improbusexcessive, immoderate, flagrant, impudent; greedy, wanton, ravenous; wicked, bad, villainous, immoral, impious, maliciou

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

illustriously

insigniter: egregie: eximie: ☞ insignite is only found of what is bad; e.g., improbus.

Quick answer

What is the Latin word for illustriously?: The usual Latin words for “illustriously” are īnsignis, ēgregius, eximius; also improbus. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.