Something in unique if there s nothing else like it. It means perfect . Nor can anything be less unique . Unique is an absolute word. The show promised to be the most unique of the season will be frowned upon as a sentence by grammarians.
Uniqueness is a noun, meaning unparalleled .
Other absolute words include infinite, certain, perfect, imperative, essential, and necessary . Using absolutely to intensify an absolute word is redundant. Avoid starting a new paragraph with secondly or thirdly . Unless you think it s all right to say firstly . Say, second, third, and so on.