A slippery slope argument claims one small step must lead to disaster. That is a slippery slope.
It is a fallacy when the steps between are asserted rather than shown, which is most of the time. A slippery slope argument is sound only if each step really does make the next more likely.
1nounlogicClaiming one small step must lead to disaster.
“The whole objection was a slippery slope with nothing under it.”
slippery slope is an argument.