Diligent, assiduous, attentive (opposed to negligent): “hath into bondage brought my too d. ear,” Tp. III, 1, 42. “by d. discovery,” Lr. V, 1, 53. Especially == officious: “how d. I am to dress thy meat myself,” Shr. IV, 3, 39. “he knows you are too d.” Tim. III, 4, 40. “a d. follower of mine,” Cymb. III, 5, 121. “a page so kind, so duteous, d.” V, 5, 86.