undreamed of
- idiom
- /ʌnˈdriːmd ʌv/
- General Saxton's invitation was "a thing utterly undreamed-of," Higginson later confessed privately.
- undreamed of before
Examples
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Astronomers observing other stars consider this undreamed-of accuracy.
Academic text (1991) -
The ROVs operating in this canyon have opened up a strange world of undreamed-of fecundity.
Academic text (1991) -
It says we harbor an undreamed-of capacity for evil.
Blog text (21) -
But there were many real heroes, people who did things and went places undreamed of, and they were indeed the stuff of childhood wonder and fantasy.
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They promise unquestionable and undreamed-of benefits to mankind.
Academic text (2007) -
Science has soared to dazzling, undreamed-of heights, but the world of man seems to be cast in a shadow of many shades.
Blog text (16) -
If, at a certain period, they seem engaged, on the contrary, in opening undreamed-of vistas before us, those belong to the realm of fundraising and publicity rather than to that of reality.
Academic text (1997) -
After decades of research, scientists have made undreamed of progress in renewable energy technology.
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The artist's latest masterpiece was filled with undreamed of beauty that captivated everyone who saw it.
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Their journey to the remote island led to undreamed of discoveries about ancient civilizations.
Synonyms
Very surprising or hard to believe
Unusual and easy to notice because it is different or surprising
So surprising and impressive that you feel amazed
So strange or large that people cannot believe it
Very unusual because it has never happened before
Impossible to imagine or believe
Very surprising and making you feel great wonder
Not imagined or expected, even in your wildest dreams
Not thought of before or expected
Happening suddenly without warning
Not imagined or expected before
Very unexpected and better than anyone imagined
An unexpected pleasant event that brings good results
Much better than you could imagine or hope for
No one expects it before it happens
Not thought of before
Antonyms
How Imagined
Surface Forms
Morphology
undreamed + of
The meaning is directly derivable from its parts: 'undreamed' (= not dreamed/imagined) plus the preposition 'of' yields 'not imagined before' or 'unimaginable previously.' This follows a regular negation + past-participle pattern that is compositional and cross-linguistically plausible, so a B1 learner who knows the constituents should be able to infer the meaning.
Etymology
Undreamed of comes from the simple image of sleep dreams: something so new people had not even dreamed about it. So it means 'not imagined before' and shows how very surprising something is.