dimensionlessWiktionary 原文英美构词拆解dimensiondimension词干less-less后缀-lessLacking (something); without (something). Added usually to a noun to form an adjective signifying a lack of that noun.词源说明From dimension + -less.释义形容词adjective1Lacking dimensions.2(sciences) Of a physical constant: lacking units.同族词派生词 3dimensionlessly·dimensionlessness·