SPONTANEOUSLY
Scrabble letter values: S1P3O1N1T1A1N1E1O1U1S1L1Y4 = 18
Definition
- adverb in a spontaneous manner.
- adverb without advance preparation. — synonyms: ad_lib, ad_libitum, impromptu
Examples
- “this shift occurs spontaneously”
- “he spoke ad lib”