assiduousness
111intentness — noun the quality of being intent and concentrated (Freq. 1) the intentness of his gaze • Syn: ↑engrossment • Derivationally related forms: ↑engross (for: ↑engrossment), ↑in …
112singleness — noun 1. without hypocrisy the singleness of his motives could not be questioned • Syn: ↑straightforwardness • Derivationally related forms: ↑straightforward (for: ↑straightforwardness) …