pains·tak·ing 
/ˈpeɪnˌsteɪkɪŋ/ adjective
/ˈpeɪnˌsteɪkɪŋ/ adjective [more painstaking; most painstaking] : showing or done with great care and effort
▪ The book describes the election process in painstaking detail. ▪ painstaking work/research
▪ The book describes the election process in painstaking detail. ▪ painstaking work/research
— pains·tak·ing·ly adverb
▪ The old house was painstakingly restored to its original splendor. ▪ She painstakingly researched all of her articles.
▪ The old house was painstakingly restored to its original splendor. ▪ She painstakingly researched all of her articles.
