Core Vocabulary: Word Formation – Prefixes and Suffixes (Fill-in-Blank) (B2) #24
The scientist’s discovery was so groundbreaking that it was considered ___ in the field of physics.
unprecedentedYou can try 3 times. After that, you can choose to see the answer.
The prefix ‘un-‘ means ‘not,’ and ‘precedented’ refers to something that has happened before.