Exam: Cambridge English: B1 Preliminary (PET)

Definition: Something that is not recognized or identified, often because it has not been discovered or verified.

Example: The source of the noise remained unknown to everyone in the house.

Definition: A person or thing that is not known or recognized, often used to refer to something mysterious or unfamiliar.

Example: The scientist explored the unknown in search of new discoveries.

Definition: Not ready or equipped for a situation or event because no preparations have been made.

Example: She felt unprepared for the exam because she hadn't studied.

Definition: Not having the necessary skills or training for a particular job or task.

Example: Many unskilled workers are looking for jobs that require little experience.

Definition: Not having confidence or certainty about something.

Example: She felt unsure about her decision to move to a new city.

Definition: Not organized or clean; messy and disorderly.

Example: Her room was untidy, with clothes scattered everywhere.

Definition: A word used to indicate that something will happen or be true up to a certain point in time or event.

Example: You cannot leave until your work is finished.

Definition: Up to the time of something happening; before a certain point in time.

Example: We waited until the rain stopped before leaving.

Definition: Something that is not desired or is not welcome.

Example: The unwanted noise from the construction site made it hard to concentrate.

Definition: Feeling sick or not healthy; having a condition that makes you feel bad.

Example: She stayed home from work because she was feeling unwell.

Definition: Happening soon or in the near future.

Example: I am looking forward to the upcoming concert next week.

Definition: Feeling sad, worried, or angry because something has gone wrong or is not as expected.

Example: She was upset when she heard the bad news.

Definition: To become disturbed or emotionally troubled.

Example: She tends to get upset when things don't go her way.

Definition: A situation where something is disturbed or thrown into disorder, often causing emotional distress or a surprising defeat in a competition.

Example: The team's upset in the championship game shocked everyone.

Definition: To cause someone to feel unhappy, worried, or disturbed; to make something go wrong or be in disorder.

Example: The news of the accident really upset her.