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Synonyms

lost in thought

Idioms  

  1. Concentrating on or pondering over something. For example, Gwen didn't hear a word you said; she was lost in thought.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Some whisper, some sleep, some stare at the ceiling, lost in thought.

From Los Angeles Times • May 13, 2025

She clutches a fan in her hand and gazes pensively, lost in thought, serene, yet tinged with sadness.

From BBC • Sep. 22, 2023

You could describe them as attentive, even lost in thought.

From Washington Post • Feb. 3, 2023

According to Isenberg, as we age it’s more effort to pay attention and we can more easily become distracted by everything from our phones to being lost in thought.

From Seattle Times • Oct. 21, 2022

There must be something doing at the Chthonian, I thought, watching him staring at the road as though lost in thought.

From "Invisible Man" by Ralph Ellison

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.