unique

adjectives

radically distinctive and without equal
"he is alone in the field of microbiology"; "this theory is altogether alone in its penetration of the problem"; "Bach was unique in his handling of counterpoint"; "craftsmen whose skill is unequaled"; "unparalleled athletic ability"; "a breakdown of law unparalleled in our history"
alone, unequaled, unequalled, unique, unparalleled
is derived from
uniqueness
(followed by `to') applying exclusively to a given category or condition or locality
"a species unique to Australia"
unique
is derived from
uniqueness
is similar to
(sometimes followed by `to') applying to or characterized by or distinguishing something particular or special or unique
"rules with specific application"; "demands specific to the job"; "a specific and detailed account of the accident"
specific
the single one of its kind
"a singular example"; "the unique existing example of Donne's handwriting"; "a unique copy of an ancient manuscript"; "certain types of problems have unique solutions"
singular, unique
is derived from
uniqueness
highly unusual or rare but not the single instance
"spoke with a unique accent"; "had unique ability in raising funds"; "a frankness unique in literature"; "a unique dining experience"
unique
is similar to
not usual or common or ordinary
"a scene of unusual beauty"; "a man of unusual ability"; "cruel and unusual punishment"; "an unusual meteorite"
unusual