from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An unapparent source of trouble or danger; a hidden hazard: "potential pitfalls stemming from their optimistic inflation assumptions” ( New York Times).
- n. A concealed hole in the ground that serves as a trap.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a potential problem, hazard, or danger that is easily encountered but not immediately obvious.
- n. An anti-pattern.
from the GNU version of the Collaborative International Dictionary of English
- n. A pit deceitfully covered to entrap wild beasts or men; a trap of any kind.
from The Century Dictionary and Cyclopedia
- n. A pit into which an animal may fall unawares, the opening being so covered as to escape observation.
- n. Hence Figuratively, any concealed danger or source of disaster.
- To lead into a pitfall; insnare.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a trap in the form of a concealed hole
- n. an unforeseen or unexpected or surprising difficulty
pit + fall (Wiktionary)