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3. there's no telling

there's no telling

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there's no telling

also there is no telling

it is impossible to guess There's no telling how much damage has been done to young people by these “designer drugs.” Even when we don't let them loose, there's no telling what kind of trouble the puppies will get into.

Related vocabulary: you never can tell

See also: telling

there's no telling

It's impossible to determine, as in There's no telling how many children will come down with measles, or There's no telling what will happen in the next episode of that soap opera. This idiom uses telling in the sense of "reckoning," a usage dating from the late 1300s.

See also: telling