防ぼう水すい性せいMeaningsNounNo-adjective1. waterproof propertyKanji used防prevent水water性nature (of a person)Composed of防ぼう水すいwaterproofing; making watertightNoun性せいnature (of a person); sex; gender; sex (i.e. sexual attraction, activity, etc.); -ty; -ity; -ness; -cyNoun