unheard-of - Wordage.info - Free Thesaurus Tool for Word Discovery - Expanded Thesaurus, Reverse Dictionary Lookup

unbeknown collapse: without someone's knowledge; "unbeknownst to me, she made all the arrangements"

unexplained collapse: having the reason or cause not made clear; "an unexplained error"; not explained; "accomplished by some unexplained process"

undiscovered collapse: not yet discovered; "undiscovered islands"; not discovered; "with earth-based telescopes many stars remain undiscovered"

unsuspected collapse: not suspected or believed likely; "remained unsuspected as the head of the spy ring"; "he was able to get into the building unspotted and unsuspected"; "unsuspected difficulties arose"; "unsuspected turnings in the road"

unidentified collapse: not yet identified; "an unidentified species"; "an unidentified witness"

unusual collapse: not commonly encountered; "two-career families are no longer unusual"; not usual or common or ordinary; "a scene of unusual beauty"; "a man of unusual ability"; "cruel and unusual punishment"; "an unusual meteorite"

uncommon collapse: not common or ordinarily encountered; unusually great in amount or remarkable in character or kind; "uncommon birds"; "frost and floods are uncommon during these months"; "doing an uncommon amount of business"; "an uncommon liking for money"; "he owed his greatest debt to his mother's uncommon character and ability"

able collapse: (usually followed by `to') having the necessary means or skill or know-how or authority to do something; "able to swim"; "she was able to program her computer"; "we were at last able to buy a car"; "able to get a grant for the project"; having inherent physical or mental ability or capacity; "able to learn"; "human beings are able to walk on two feet"; "Superman is able to leap tall buildings"; have the skills and qualifications to do things well; "able teachers"; "a capable administrator"; "children as young as 14 can be extremely capable and dependable"; having a strong healthy body; "an able seaman"; "every able-bodied young man served in the army"

unclassified collapse: not arranged in any specific grouping; not subject to a security classification

unfamiliar collapse: not known or well known; "a name unfamiliar to most"; "be alert at night especially in unfamiliar surroundings"

sealed collapse: covered with a waterproof coating; "a sealed driveway"; having been paved; determined irrevocably; "his fate is sealed"; closed or secured with or as if with a seal; "my lips are sealed"; "the package is still sealed"; "the premises are sealed"; established irrevocably; "his fate is sealed"; undisclosed for the time being; "sealed orders"; "a sealed move in chess"

infrequent collapse: not frequent; not occurring regularly or at short intervals; "infrequent outbursts of temper"

enigmatic collapse: resembling an oracle in obscurity of thought; "the oracular sayings of Victorian poets"; "so enigmatic that priests might have to clarify it"; "an enigmatic smile"; not clear to the understanding; "I didn't grasp the meaning of that enigmatic comment until much later"; "prophetic texts so enigmatic that their meaning has been disputed for centuries"

nameless collapse: being or having an unknown or unnamed source; "a poem by an unknown author"; "corporations responsible to nameless owners"; "an unnamed donor"

unpopular collapse: regarded with disfavor or lacking general approval; "unpopular ideas"; "an unpopular war"

unprecedented collapse: having no precedent; novel; "an unprecedented expansion in population and industry"

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