adjective
1. guided by whim and fancy
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flighty young girls
• Syn: ↑flighty, ↑flyaway, ↑head-in-the-clouds
• Similar to: ↑frivolous
• Derivationally related forms: ↑flightiness (for: ↑flighty)
2. lacking sense or discretion
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his rattlebrained crackpot ideas
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"how rattlepated I am! I've forgotten what I came for"- Glenway Westcott
• Syn: ↑rattlebrained, ↑rattlepated, ↑scatty
• Similar to: ↑foolish
Useful english dictionary. 2012.