Sizableness refers to the size or magnitude of something. There are several synonyms for this word such as largeness, magnitude, mass, bulk, prodigiousness, enormity, and great size. Largeness implies a considerable extent or space, and it can also refer to importance and abundance. Magnitude refers to the extensive or great size of an object that makes it visible to the naked eye. Mass refers to the amount of matter or substance in an object. Bulk refers to an object's massiveness and weight. Prodigiousness evokes a sense of awe and amazement and is used to describe something that is extraordinarily great in size or extent. Enormity refers to the tremendous size of something that is beyond ordinary proportions. Great size is a simple and straightforward synonym for sizableness.