tentativeness

noun
1
the state of not being definite or certain because you may want to change it later
نااطمینانی, تزلزل, عدم قطعیت, تردید, نامعینی
2
the fact of not behaving or being done with confidence
تردد, دودلی, نااطمینانی, نامطمئنی, ناقطعی بودن
He played with some uncertainty and tentativeness.
synonym hesitancy