Detailed; thorough: an in-depth study. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "in-depth" in a sentence
"This is a problem that extends beyond the scope of this book; this writer needs to do long term work on character development and is best referred to an in-depth study of characterization there are many books on this alone."
"The manuscript itself was built from a series of in-depth interviews with David Hage, a superb editor at the Minneapolis Star Tribune, who served as my cowriter and became my comrade through three years of research and writing."
"In America and the Challenges of Religious Diversity, Robert Wuthnow summarizes a series of in-depth interviews with people who have experienced this inadvertent contact with someone of a different religion."