Spontaneous (adjective) — عفوي وتلقائي: Happening naturally without planning. Below are 7 words with a similar meaning; the linked ones have full GL Dictionary entries with their meaning in Arabic.
Acting without thinking carefully.
Existing in or caused by nature, not made by people; also normal or innate.
Done by choice; unpaid.
Done naturally without conscious thought.
Done without preparation.
unplannedautomatic
Acting quickly without thinking.
Done without conscious control.
Expressing oneself freely without restraint.