singular

unusual or striking

• “a remarkable sight”
• “such poise is singular in one so young”

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”

being a single and separate person 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

grammatical number category referring to a single item or unit

the single one of its kind

• “a singular example”
• “the unique existing example of Donne”
• “;”
• “;”

the form of a word that is used to denote a singleton