Assuming a generous 1000000 words in the dictionary, and any non-letter ASCII printable separator allowed as a separator, this is equivalent to a 9 character random password with just lower case letters and digits, or a 7 character random password if all printable ASCII is allowed. It's about 46 bits of entropy. That is a bit low by modern minimum acceptable password length standards.
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Assuming a generous 1000000 words in the dictionary, and any non-letter ASCII printable separator allowed as a separator, this is equivalent to a 9 character random password with just lower case letters and digits, or a 7 character random password if all printable ASCII is allowed. It's about 46 bits of entropy. That is a bit low by modern minimum acceptable password length standards.