Use these words in formal settings or examinations such as TOEFL and/or IELTS.

Advanced Vocabulary To Enhance Your Speech.

Having a harmful effect, especially in a subtle or gradual way.

Lasting for a very short time; transient.

Behaving or looking as though one thinks they are superior to others.

To deliberately make something difficult to understand.

Fluent or persuasive in speaking or writing.

The occurrence of events by chance in a happy or beneficial way.

Inclined to keep one's thoughts or feelings to oneself; reserved.

A person who acts obsequiously towards someone important in order to gain advantage.

Intended for or likely to be understood by only a small number of people with specialized knowledge.