heftily

/ˈhɛftɪli/
adverb
  1. In a heavy, strong, or substantial manner.
    • She contributed heftily to the charity fund.
    • The company was heftily fined for breaking safety rules.
    • He heftily lifted the crate onto the shelf.
Antonyms
What does "heftily" mean? | whatsthatwordmean | whatsthatwordmean