Meaning of “undreamed of” in the English Dictionary

american-english dictionary

(Definition of “undreamed of” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"undreamed of" in American English

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undreamed ofadjective [ not gradable ]

us /ʌnˈdrimdˌʌv/ also undreamt of, /ʌnˈdremˌtəv/

better or greater than anyone would think possible:

Through the Internet, we have access to information that was undreamed of 30 years ago.

(Definition of “undreamed of” from the Cambridge Academic Content Dictionary © Cambridge University Press)