hefty

19th century. From heft (“weight”) +‎ -y.

The similarity with German heftig (“vigorous, violent, intense”) is apparently coincidental. From the German are Dutch, Danish, Norwegian heftig, Swedish häftig.

• IPA^(key): /ˈhɛfti/

• Audio (US):

  (file)

• Rhymes: -ɛfti

hefty (comparative heftier, superlative heftiest)

1. with heft; heavy, strong, vigorous, mighty, impressive

   He can throw a hefty punch.

   • 1934, Frank Richards, The Magnet, Kidnapped from the Air:

     The Remove dormitory echoed to the old, familiar sound of Bunter's hefty snore.

2. Strong; bulky.

   They use some hefty bolts to hold up road signs.

3. (of a person) Possessing physical strength and weight; rugged and powerful; powerfully or heavily built.

   He was a tall, hefty man.

4. Heavy, weighing a lot.

   She carries a hefty backpack full of books.

5. (of a number or amount) Large.

   That's going to cost you a hefty sum.

   a hefty fine

• heftily
• heftiness