Acting of one's self or of itself; acting without depending on other agents.(adjective)
Gnu Collaboartive International Dictionary of English: licensed under The Code Project Open License (CPOL)
Use "self-active" in a sentence
"Fairy tales offer to the little child an opportunity for the exercise of that self-active inner impulse which seeks expression in two kinds of play, the symbolic activity of free play and the concrete presentation of types."
"My sole purpose is to make the reader self-active, observative, free from hide-bound prejudice, and reborn as a participant in the wonderful experiences of life which fill the universe."
"Once knowledge is regarded as a synthetic act of a self-active subject, the gap artificially created between subject and object, reality and appearance, closes of itself."