This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Not forced; caused by oneself.

Not forced, in any sense of that word.

adj. not brought about by coercion or force

adj. not resulting from undue effort; not forced

"You've got to give them credit, but then after you do that, most of our turnovers were what I call unforced turnovers. ..."

voluntary    effortless   

unforcedly    unforcedness    unforced error   

unconstrained    motiveless    heartfelt    warm-hearted    unshackled    unfailing    unstrained    unstudied    fun-loving    unquenchable