確かく実じつ性せいMeaningsNoun1. certaintyKanji used確certain実real性nature (of a person)Pitch accentかくじつせいComposed of確かく実じつcertain; sure; definite; reliable; sound; solid; safe; secureNa-adjective性せいnature (of a person); sex; gender; sex (i.e. sexual attraction, activity, etc.); -ty; -ity; -ness; -cyNoun