Jump to:

• in-depth
  in-depth

  adjective

  extensive, thorough, or profound.
• in depth
  in depth

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

in-depth

American  

[in-depth] / ˈɪnˈdɛpθ /

adjective

1. extensive, thorough, or profound.

   an in-depth analysis of the problem.

2. well-balanced or fully developed.

---

in-depth British  

adjective

1. carefully worked out, detailed and thorough

   an in-depth study

---

in depth Idioms  

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

---

Etymology

Origin of in-depth

First recorded in 1960–65

Example Sentences

In an in-depth analysis of the issue, economist Robert Frank argued that inflation isn’t the villain.

From Salon • May 7, 2026

Four years ago CBO published an in-depth analysis of the effects of failing to rein in ever-expanding deficits and debt.

From The Wall Street Journal • May 5, 2026

Starting Wednesday, Mason will get that opportunity with the launch of “Alchemy with Anthony Mason,” a biweekly streamed YouTube program featuring in-depth interviews about the creative process with musicians, authors, artists and film directors.

From Los Angeles Times • May 1, 2026

Lord Mandelson was announced as the UK's ambassador to the US in December 2024, with the peer then undergoing in-depth vetting to obtain his required security clearance for the role.

From BBC • Apr. 28, 2026

He was surprised at how readily everyone agreed that it was time to do some more in-depth exploring of the Maze and stay out there overnight.

From "The Maze Runner" by James Dashner

Related Words

• comprehensive
• detailed
• exhaustive
• extensive
• thorough