in-depth

[in-depth]

adjective

1. extensive, thorough, or profound.

   an in-depth analysis of the problem.

2. well-balanced or fully developed.

in-depth

adjective

1. carefully worked out, detailed and thorough

   an in-depth study

Word History and Origins

Origin of in depth¹

First recorded in 1960–65

Idioms and Phrases

Profoundly, thoroughly, as in It will take years to cover the entire subject in depth. [Mid-1900s]

Example Sentences

To replace traditional tests, some experts want teachers to rely more on assigning group and individual longer-term projects and on building portfolios over time that demonstrate academic progress and in-depth knowledge.

From Los Angeles Times

The documentary — which saw its red carpet event nixed by ABC News Studios on Sunday — features over 90 minutes of extensive live, offstage and backstage footage from back in the day as well as in-depth current interviews with McLachlan, her team, the crew and many of the women who performed on that stage every night, explaining the impact of the festival on the lives and careers of the musicians who played and for the people who attended it.

From Salon

An in-depth study of the Gas Co.

From Los Angeles Times

BBC Sport has taken an in-depth look at Mudryk's situation, talking to people in both Ukraine and London to find out where he is and what is going on.

From BBC

Li Chenggang, China’s international trade representative and vice minister of commerce, said the U.S. and Chinese officials had “candid, in-depth and constructive communication” on trade issues and TikTok, Xinhua, China’s state media agency, reported.

From Los Angeles Times

Related Words

• comprehensive 
• detailed 
• exhaustive 
• extensive 
• thorough