optional

adjective B1

isteğe bağlı

not required; left to personal choice or discretion

You can skip the optional reading if you run out of time.

Many smartphones have an optional setting for dark mode.
The professor announced that the final project would be optional this semester.
Researchers often include optional controls to test the robustness of their experiments.
The workshop offers an optional tutorial for beginners.

optional course · isteğe bağlı ders Students can enroll in an optional course to broaden their knowledge.
optional feature · isteğe bağlı özellik The software includes an optional feature for advanced users.
make sth optional The university decided to make the lab component optional for first-year students.

sb: somebody · sth: something

Same family