in–depth 
/ɪnˈdɛpθ/ adjective
/ɪnˈdɛpθ/ adjective [more in–depth; most in–depth] : covering many or all important points of a subject : thorough
▪ an in-depth investigation/analysis ▪ in-depth news coverage ▪ This film takes an in-depth look at life on the farm.
▪ an in-depth investigation/analysis ▪ in-depth news coverage ▪ This film takes an in-depth look at life on the farm.
