Unique meaning

adjective

1. radically distinctive and without equal

   “he is alone in the field of microbiology”

   “this theory is altogether alone in its penetration of the problem”

   Synonymsaloneunequaledunequalledunparalleled

2. (followed by `to') applying exclusively to a given category or condition or locality

   “a species unique to Australia”

3. the single one of its kind

   “a singular example”

   “the unique existing example of Donne's handwriting”

   Synonymssingular

4. highly unusual or rare but not the single instance

   “spoke with a unique accent”

   “had unique ability in raising funds”