An open book

usgb
noun

A person, situation, or thing that is easy to understand or predict.

His thoughts and feelings are like an open book.
Visual representation of "an open book" - A person, situation, or thing that is easy to understand or predict

Often appears as...

  • her life is an open book
  • read him like an open book

Usage tips

Idiomatic

Definition 1 of 2
Visual representation of "an open book"
LampPro Tip 1/3

Predictable Personality

Refers to someone whose thoughts and actions are easy to guess.

Illustration for Predictable Personality
As soon as he heard the news, I knew he would offer to help; he's an open book.
LampPro Tip 2/3

No Secrets

Describes someone who doesn’t hide their feelings or secrets.

Illustration for No Secrets
You can ask her anything, she’s an open book.
LampPro Tip 3/3

Emotional Transparency

Indicates that a person's emotions are easy to read and understand.

Illustration for Emotional Transparency
After the match, his disappointment was an open book.
Visual representation of the word "An open book"

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