the GNU version of the Collaborative International Dictionary of English
n. A person of weak intellect; a silly person.
The Century Dictionary and Cyclopedia
n. A person of limited or feeble intelligence; a foolish or silly person.
n. The American dunlin, purre, or ox-bird. See cut under dunlin.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a person lacking intelligence or common sense
Word Usage
"A certain simpleton was once walking along, haling his ass after him by the halter, when a pair of sharpers saw him and one said to his fellow, “I will take that ass from yonder wight.”"