Observer

Synonyms of observer

• spectator
• witness
• onlooker
• watcher

Antonyms of observer

• actor
• performer
• participant
• engager

Collocations of observer

keen observer

Frequency: 80 %

The keen observer spotted the mistake immediately.

casual observer

Frequency: 70 %

As a casual observer, she didn't notice the small details.

silent observer

Frequency: 60 %

She remained a silent observer throughout the meeting.

active observer

Frequency: 50 %

The active observer participated in the experiment.

neutral observer

Frequency: 45 %

It is important for the neutral observer to remain unbiased.

Idiomatic Expressions for observer

• Phrase: silent observer
  Meaning: someone who watches or observes quietly without drawing attention to themselves
  Usage: She sat in the corner as a silent observer, taking in the scene without saying a word.