#1
exacting a. [
fastidious] having complicated nutritional requirements; especially growing only in special artificial cultures; "fastidious microorganisms"; "certain highly specialized xerophytes are extremely exacting in their requirements"
. wn #2
exacting s. [
stern, strict] severe and unremitting in making demands; "an exacting instructor"; "a stern disciplinarian"; "strict standards"
. wn #3
exacting s. [
exigent] requiring precise accuracy; "an exacting job"; "became more exigent over his pronunciation"
. wn