One who dithers; one who is unable to decide; a procrastinator.(noun)
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Use "ditherer" in a sentence
"Guaranteed bloodbath for the anti-American Radical Fringe Democratic Party in 2010 and as far as 2012 (if the ditherer is not impeached first) the end of the Marxist in chief."
"However, critics have also accused Brown of being a leader without charisma and a "ditherer" - a label he has been unable to shake off ever since he decided against holding a general election a few months after being chosen by the party to succeed Blair in June 2007."
"Ok, so Jack Straw may not quite have used the word "ditherer", but here's what he has to say about the PM in a Channel 4 documentary, aired tomorrow: "[Brown is] someonewho is cautious in his decision-making.""