← BackshareGuesssizeableness/ˈsaɪzəbəlnəs/nounThe quality or state of being sizeable; largeness.We were impressed by the sizeableness of the new library.The sizeableness of the donation surprised everyone.The sizeableness of the task made them feel overwhelmed.SynonymsmagnitudelargenessbulkAntonymssmallness