self- + willed
self-willed (comparative more self-willed, superlative most self-willed)
- Obstinate; strong-minded
- He was so self-willed that he refused to do anything that did not grant instant satisfaction.
- Possessing self-will.
- The idea of self-willed machines, which could decide to take over the world, scares all the people smart enough to create such devices.