Someone who advocates defeatism, or has such an attitude (noun)
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Use "defeatist" in a sentence
"I for one do not mind my tax dollars going to a dog park and I commend those members of the City Council who refuse to engage in defeatist and negative thinking that always seems to hold this City back."
"Did the Bush administration try to accommodate the Senators that had misgivings about the war, or were they called defeatist and traitors, and worst of all, wasn't a 30 year Marine Veteran branded a "coward" by a right wing female that never did anything for her country but bitch about the Democrats?"
"The prime minister's statement was called defeatist by Liberal finance critic John McCallum, who said it is becoming clearer by the day that the government should up the ante on stimulus, as the Organization for Economic Co-operation and Development recommended this week."