spontaneously

adverb

Stress: second syllable

Syllables: spon-ta-ne-ous-ly (5)

English Definition

As a result of a sudden impulse or inclination and without premeditation

Example Sentence

The audience spontaneously burst into applause.

US IPA /spɑːnˈteɪniəsli/
UK IPA /spɒnˈteɪniəsli/