Wiktionary
a. Somewhat heavy.
Usage examples of "heavyish".
Her heavyish face lightened with pleasure and she led the way to the far end of the corridor.
Ian Young had the same white heavyish face in which nothing discernable was going on.
The one at the end was roundly built and on the heavyish side, with thinning hair combed straight back from the forehead in typical Russian style, and a fleshy moon-face amply provided with chins, McCain's first thought was that he'd have looked more in place in crumpled clothes at the front of a schoolroom, or fussing with rosebushes outside a house in the suburbs.
It was heavyish, and the chair (which was-of the revolving kind, and not the modern type with one spindly leg and a stiffly sprung back, which butts you in the lower spine and keeps you up to your job) wobbled unsteadily, as she carefully lowered the box and balanced it on the narrow top of the cupboard.