Spontaneously

//spɒnˈteɪ.ni.əs.li// adv

adv ·Rare ·Advanced level

Definitions

Adverb
  1. 1
    In a spontaneous manner; naturally; voluntarily.

    "The idea that the body could spontaneously ignite was promoted by the 19th-century temperance movement."

Adverb
  1. 1
    without advance preparation wordnet
  2. 2
    in a spontaneous manner wordnet

Synonyms

All synonyms
ad libad libitumby choicefreelyimpromptuindependently

Example

More examples

"It occurred to me spontaneously."

Etymology

From spontaneous + -ly.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.