As*sid"u*ous (#), a. [L. assiduus, fr. assidre to sit near or close; ad + sedre to sit. See Sit.]

1.

Constant in application or attention; devoted; attentive; unremitting.

She grows more assiduous in her attendance. Addison.

2.

Performed with constant diligence or attention; unremitting; persistent; as, assiduous labor.

To weary him with my assiduous cries. Milton.

Syn. -- Diligent; attentive; sedulous; unwearied; unintermitted; persevering; laborious; indefatigable.

As*sid"u*ous*ly, adv. -- As*sid"u*ous*ness, n.

© Webster 1913.