causeless

  • (s) having no justifying cause or reason
    • a senseless, causeless murder
    • a causeless war that never had an aim
    • an apparently arbitrary and reasonless change
    reasonless,
  • (s) having no cause or apparent cause
    • a causeless miracle
    • fortuitous encounters--strange accidents of fortune
    • we cannot regard artistic invention as...uncaused and unrelated to the times
    fortuitous, uncaused,

Synonyms

reasonless fortuitous uncaused

Words of close approximity