off the top of one's head in Polish
off the top of one's head in Polish
bez zastanowienia
(idiomatic) In an extemporaneous manner; without careful thought, preparation, or investigation.
impromptu
(idiomatic) In an extemporaneous manner; without careful thought, preparation, or investigation.
z głowy
(idiomatic) In an extemporaneous manner; without careful thought, preparation, or investigation.