How do you say this another way?
The odds are too great.

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Answer

The odds are too high.
The chance is too great.
The risk is too great.(risk means chance of something bad happening though)

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This means that it is very likely that something will happen. If it is snowing heavily outside, it is best not to drive. The odds are too great that you will have an accident.

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The probability of it is likely to happen.

Hence, that probability would at least result to more than 50% chance to happen.