from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Lacking adult maturity or experience; immature: a callow young man.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Bald.
- adj. Unfledged (of a young bird).
- adj. Immature, lacking in life experience.
- adj. Lacking color or firmness (of some kinds of insects or other arthropods, such as spiders, just after ecdysis). Teneral.
- adj. Shallow or weak-willed.
- adj. Unburnt (of a brick)
- n. A callow young bird.
- n. A callow or teneral phase of an insect or other arthropod, typically shortly after ecdysis, while the skin still is hardening, the colours have not yet become stable, and as a rule, before the animal is able to move effectively.
from the GNU version of the Collaborative International Dictionary of English
- adj. Destitute of feathers; naked; unfledged.
- adj. Immature; boyish; “green”.
- n. A kind of duck. See old squaw.
from The Century Dictionary and Cyclopedia
- Bald; without hair.
- Without feathers; that has not yet put forth feathers; naked; unfledged, as a young bird: as, “callow young,”
- Pertaining to an unfledged bird: as, “callow down,” Drayton, The Owl.
- Youthful; juvenile; very immature: as, a callow youth.
- n. A bald person; a baldhead.
- n. An alluvial flat along a river-course: a term used by writers on Irish geology and agriculture.
- n. In coal-mining, the baring, or cover, of open workings.
- Having the character of an alluvial flat: as, callow land; a callow meadow.
- n. In entomology, an insect just emerged from its cocoon: especially applied to ants.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. young and inexperienced
Middle English calwe, bald, from Old English calu.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle English calwe ("bald"), from Old English calu ("callow, bare, bald"), from Proto-Germanic *kalwaz (“bare, naked, bald”), from Proto-Indo-European *gAlw- (“naked, bald”). Cognate with West Frisian keal ("bald"), Dutch kaal ("bald"), German kahl ("bald"), Russian голый (gólyj, "nude"). (Wiktionary)