the GNU version of the Collaborative International Dictionary of English
n. One who wavers; one who is unsettled in doctrine, faith, opinion, or the like.
The Century Dictionary and Cyclopedia
n. One who or that which wavers or fluctuates; especially, a person who vacillates or is undecided in mind.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. one who hesitates (usually out of fear)
Word Usage
"-- to be sure; most respectable man, capital fellow, the best parson in the county, -- no cant, but thoroughly orthodox; he certainly keeps in his brother, who, though a very active member, is what I call a waverer on certain questions."