The Collaborative International Dictionary
head-in-the-clouds
head-in-the-clouds \head-in-the-clouds\ adj. unable to concentrate on matters at hand; flighty[2].
Syn: flighty, scatterbrained.
WordNet
head-in-the-clouds
adj. absent-mindedly irresponsible; "he said I was too flighty to be a good supervisor" [syn: flighty, scatterbrained]