ずっしり

adverb, adverb taking the 'to' particle, noun or participle which takes 'suru'

heavily; weightily; profoundly

Describes something physically heavy or metaphorically weighty, such as a heavy object, a deep impression, or a substantial feeling. Often used with verbs like 感じる, 響く, or のしかかる.

• この箱はこはずっしりと重おもい。

  This box is heavily weighty.