1. (adj)remarkable, singular unusual or striking "a remarkable sight"; "such poise is singular in one so young"
2. (adj)curious, funny, odd, peculiar, queer, rum, rummy, singular beyond or deviating from the usual or expected "a curious hybrid accent"; "her speech has a funny twang"; "they have some funny ideas about war"; "had an odd name"; "the peculiar aromatic odor of cloves"; "something definitely queer about this town"; "what a rum fellow"; "singular behavior"
3. (adj)singular being a single and separateperson or thing "can the singular person be understood apart from his culture?"; "every fact in the world might be singular...unlike any other fact and sole of its kind"-William James
4. (adj)singular composed of one member, set, or kind
6. (adj)singular, unique 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"