(of the way in which one speaks) bluntly / (of the way in which one speaks) without reserve / (of the way in which one speaks) freely / (of the way in which one speaks) candidly / (of the way in which one speaks) straight-forwardly
ずしり
zushiri
ずしり JD1
with a clunk / with a thud / with a thump / with a kerplunk
ずっしり
zusshiri
ずっしり JD1
in a filled-up way / in a bulging manner / heavily