What is the Latin word for arbitrarily?

The usual Latin words for “arbitrarily” are īnsolēns, licēns. The right choice depends on the sense; see the distinctions below.

English → Latin

“arbitrarily” in Latin

īnsolēnsunusual; contrary to custom or one’s own custom; arrogant, haughty, insolent licēnsbold; presumptuous; unrestrained; licentious

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

arbitrarily

ad arbitrium: ad libidinem; ad voluntatem; ex libidine; ex voluntate; insolenter. To form words arbitrarily, verba fingere insolenter (Gell.) or licentius. Vid: Arbitrarily often implies cruelty, despotic conduct, etc., superbe, crudeliter. To act arbitrarily, crudeliter ac regie facere; crudelissime se gerere: to rule or govern arbitrarily, crudelem superbamque dominationem exercere (after Cic., Phil., 3, 14, 34).

Quick answer

What is the Latin word for arbitrarily?: The usual Latin words for “arbitrarily” are īnsolēns, licēns. 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.