She was filled with needless worry about the test.
needless confusion
Frequency:
70
%
The instructions were clear, so there was no need for needless confusion.
needless repetition
Frequency:
60
%
The teacher warned against needless repetition in the essay.
Idiomatic Expressions for needless
Phrase: needless to mention
Meaning: used to indicate that something is so obvious that it does not need to be mentioned explicitly
Usage: Needless to mention, the project was completed ahead of schedule.