Main entry: nuclear, atomic
Definition: (weapons) deriving destructive energy from the release of atomic energy
Usage: nuclear war; nuclear weapons; atomic bombs
Antonyms: conventional
Definition: (weapons) using energy for propulsion or destruction that is not nuclear energy
Main entry: atomic
Definition: immeasurably small
Definition: above average in size or number or quantity or magnitude or extent
Antonyms: big
Definition: on a grand scale
Antonyms: much
Definition: (quantifier used with mass nouns) great in quantity or degree or extent