不ふ定てい計けい量りょう空くう間かんMeaningsNoun1. indefinite metric spaceKanji used不negative定define計measure量quantity空empty air間intervalComposed of不ふ定ていunsettled; uncertain; indefinite; unfixed; variable; irregular; changeable; indeterminateNo-adjective計けい量りょうmeasuring; weighing; metric; distance functionNoun空くう間かんspace; room; airspaceNoun