It is quite frustrating, I admit. But now I understand better. Dull of hearing is the opposite to sharp hearing. Dull and sharp are opposite adjectives which we usually use to describe knives or scissors, razors or anything that cuts. These objects get dull by either lack of use or lack of sharpening.
masâ¢sive /ËmaesÉªv/ËMÃ¦SÉªV usa pronunciation. adjâ¢masâ¢sive, ly. advâ¢masâ¢sive, ness. [n]. 1  uncountable made up of or forming a large:mass the massive columns of the ancient. 2  temple large or:prominent a massive.  forehead
bulk, mass, volume mean the aggregate that forms a body or unit. bulk implies an aggregate that is impressively large, heavy, or numerous. the darkened bulk of the skyscrapers; mass suggests an aggregate made by piling together things of the same kind. a mass of boulders volume applies to an aggregate without shape or outline and capable of flowing or fluctuating.