どんと

どんとdonto

adverb

  1. powerfully
  2. vigorously
  3. with all one's strength
  4. lots of
  5. heaps of
  6. plenty

Study it in Yanamino

Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences