D defs.my
Entry 2 senses Webster, 1913

Assiduous

/əs-ĭd'-wəs/ · As·sid·u·ous · IPA /əˈsɪd͡ʒu.əs/
01 a. Constant in application or attention; devoted; attentive; unremitting.
  1. 1.
    Constant in application or attention; devoted; attentive; unremitting.
    “She grows more assiduous in her attendance.” Addison.
  2. 2.
    Performed with constant diligence or attention; unremitting; persistent; as, assiduous labor.
    “To weary him with my assiduous cries.” Milton.