The word knoblike refers to something that closely resembles a knob, or a small, rounded protuberance. There are various synonyms for knoblike that can be used depending on the context. For instance, something that is knoblike can also be described as ball-shaped, bulbous, round, or protuberant. Other synonyms for knoblike include convex, domed, globe-shaped, hemispherical, and bonnet-shaped. In some cases, the word button-like or stud-like can also be used to describe something that is knoblike. These various synonyms offer a range of choices for writers or speakers looking to accurately describe something that is rounded and protruding.