Unique
Part of speech: adjective
Definition: Being the only one of its kind; unequaled, unparalleled or unmatched. Of a feature, such that only one holder has it. (disputed) Of a rare quality. (disputed) Unusual.
Example sentence: The greatest lesson I learned that year in Mrs. Henry's class was the lesson Dr. Martin Luther King, Jr., tried to teach us all: Never judge people by the color of their skin. God makes each of us unique in ways that go much deeper.
Unequalled
Part of speech: adjective
Definition: Without equal; unmatched.