unintentional act meaning in Chinese

非故意的行为

The reasons for this may be resulted from the unintentional act taken by the speaker , either the speaker has mis - estimated the scope of knowledge or the intention of conversation by the other party , or he do it intentionally for some purposes ( such as probing for something or just making fun with )
产生的原因可能是非故意，如说话者错误估计了对方的知识范围或话语意图；也可能是为了某种目的（如试探虚实或纯粹逗乐）而故意为之。