the GNU version of the Collaborative International Dictionary of English
adj. Inclined to vacillate; wavering; irresolute.
The Century Dictionary and Cyclopedia
Inclined to vacillate; wavering; vacillating; uncertain; irresolute.
Word Usage
"His response to the political crisis over his spiritual advisers has been vacillatory, not conciliatory: first he stood by them, then he distanced himself from them."