deep in thought

Also found in: Thesaurus.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.deep in thought - deeply absorbed in thoughtdeep in thought - deeply absorbed in thought; "as distant and bemused as a professor listening to the prattling of his freshman class"; "lost in thought"; "a preoccupied frown"
thoughtful - exhibiting or characterized by careful thought; "a thoughtful paper"
References in classic literature ?
His niece was deep in thought likewise, trying to harden and prepare herself against farther questioning.
For a short time he sat deep in thought, after Elinor had ceased to speak;--at last, and as if it were rather an effort, he said,
Adam's companion remained silent for some time, deep in thought.
Ojo had been deep in thought, and now he asked the Chief: "Is there a dark well in any part of your country?
Full browser ?