HyperDic

English > 1 sense of the word rattlebrained:
ADJECTIVEallrattlebrained, rattlepated, scatterbrained, scattylacking sense or discretion
English > rattlebrained: 1 sense > adjective 1
Meaninglacking sense or discretion.
Example"his rattlebrained crackpot ideas"
Synonymsrattlepated, scatterbrained, scatty
BroaderfoolishDevoid of good sense or judgment