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English to English adjective
| 1 |
Giddy; thoughtless. |  | source: webster1913 adjective satellite
| 2 |
lacking sense or discretion |  | Example: his rattlebrained crackpot ideas how rattlepated I am! I've forgotten what I came for
source: wordnet30
| 3 |
guided by whim and fancy |  | Example: flighty young girls
source: wordnet30
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