笨重

bènzhòng
  1. heavy; cumbersome; unwieldy
  2. laborious; arduous

CEDICT

Entry Composition

1 笨 bèn
  1. stupid
  2. foolish
  3. silly
  4. slow-witted
  5. clumsy
2 重 zhòng
  1. heavy
  2. serious
  3. to attach importance to