self-starting
adjectiveUK /ˌself ˈstɑːtɪŋ/
US /ˌself ˈstɑːrtɪŋ/
Able to begin working or acting on its own without help from someone else.
The self-starting robot began cleaning the floor as soon as it was switched on.
RELATED WORDS
OTHER MEANINGS
2. A machine or engine that starts by itself without a manual crank or external push.
The self-starting motor fired up the moment the power came back.
3. A person who takes action and begins tasks without being told what to do.
She is a self-starting employee who always finds useful work to do.
4. Able to begin an activity or process automatically.
The self-starting timer reset itself after each cycle.