adjective extremely large in size or extent; immense
The author painted a vivid picture of the vast landscapes in their novel.
The vast empire of Rome once ruled over much of Europe.
The vast deforestation of the Amazon rainforest is a major concern for conservationists.
The vast amount of data collected by companies is used for various purposes.
Scientists are constantly discovering new planets in the vast universe.
The vast expanse of the desert stretched out before us.
The vast depths of the ocean hold many mysteries waiting to be explored.
The writer described the vast landscape in great detail.
The psychologist had a vast amount of experience working with various mental health disorders.
The architect was known for designing buildings on a vast scale.
The historian's knowledge of the subject was vast and comprehensive.
The researcher had a vast amount of data to analyze for the study.
The engineer's expertise covered a vast range of technical fields.
The professor's knowledge in the field was vast and respected by colleagues.
The CEO managed a vast global company with operations in multiple countries.
The lawyer had a vast amount of legal knowledge and experience in the courtroom.
The doctor's vast medical knowledge allowed them to diagnose complex cases effectively.