Noun
the quality of having a definite purpose
Source: WordNetA convert to introversion, she has the convert’s singleminded purposefulness. Source: Internet
In the final act his music assumes a grimness and purposefulness that reflects his new fatalism: "He will make one more appeal; if Carmen refuses, he knows what to do". Source: Internet
Biology must come to terms with feeling, meaning, and the purposefulness of life, as well as with the idea of a designer. Source: Internet
Finally, the order and purposefulness of the whole of our experience of the world and especially of nature overwhelms us into believing in the existence of an extremely powerful and intelligent spirit that causes that order. Source: Internet