Only
Only adjective - Having no equal or rival for excellence or desirability.
Usage example: the only way to really appreciate the beauty of the forest is to walk through it
Unique
Unique adjective - Being the one or ones of a class with no other members.
Usage example: the Mapparium, a huge glass globe that visitors can walk through, is unique—there's not another one like it anywhere
Only is a synonym for unique in same topic. You can use "Only" instead the word "Unique" as an adjective or an adverb, if it concerns topics such as single, sole, alone, solitary. popular alternative
Nearby Words: uniquely, uniqueness
Mutual synonyms
Cite this Source
Unique and Only. (2016). Retrieved 2026, August 08, from https://thesaurus.plus/related/only/unique
Only & Unique. N.p., 2016. Web. 08 Aug. 2026. <https://thesaurus.plus/related/only/unique>.
Unique or Only. 2016. Accessed August 08, 2026. https://thesaurus.plus/related/only/unique.
Google Ngram Viewer shows how "only" and "unique" have occurred on timeline