ISEE/SSAT Vocabulary Builder›Words›S›spontaneous
ISEE/SSATmedium
spontaneous
done or occurring without planning, on impulse
Synonyms
- impulsive
- unplanned
- instinctive
Antonyms
- planned
- deliberate
- calculated
spontaneous in a sentence
Their spontaneous road trip turned into one of the best weekends of the summer.
Halfway through rehearsal, the drummer spontaneously changed the song's rhythm, and the rest of the band had to catch up.
Where it comes from
From Latin sponte 'of one's own accord'
Memory hook
SPONTANEOUS sounds like 'spawn-tane-us' — something that just spawns instantly.
Read it in context
- When the Water Returned Nature
Practice spontaneous in the app