Spontaneous rock Synonyms

Definitions for Spontaneous


  • (adjective) done instantly and without conscious thought or decision
  • (adjective) said or done without having been planned or written in advance
  • (adjective) happening or arising without apparent external cause

Definitions for Rock


  • (noun) a usually valuable stone cut and polished for ornament
  • (verb) to make a series of unsteady side -to-side motions
  • (verb) to swing unsteadily back and forth or from side to side