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An airdropped bomb without any guidance system to control it after launch.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
a bomb that falls because of gravity and is not guided to a target
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: gravity bomb
Antonyms: smart bomb
Broader terms: bomb
From dumb + bomb, coined to contrast with smart bomb.