Which of the following words is a synonym for unusual?

a. routine

b. unpleasant

c. typical

d. unique

Unusual is something uncommon, all these answers have nothing to do with something uncommon but unique. Routine is doing your safe things you do daily. unpleasant is something you dislike and typical is pretty much common. That leaves unique which is something that is not common to find or see.

Unique is a synonym for unusual