unique
adjective
[ juːˈniːk ]
• being the only one of its kind; unlike anything else.
• "the situation was unique in British politics"
Similar:
distinctive,
individual,
special,
especial,
idiosyncratic,
quirky,
eccentric,
isolated,
single,
sole,
lone,
unrepeated,
unrepeatable,
solitary,
exclusive,
only,
one and only,
in a class by itself,
rare,
uncommon,
unusual,
peculiar,
novel,
strange,
odd,
sui generis,
one-off,
unique
noun
• a unique person or thing.
• "some of Lamb's writings were so memorably beautiful as to be uniques in their class"
Origin:
early 17th century: from French, from Latin unicus, from unus ‘one’.