Defn: In a complacent manner.

COMPLAIN Com*plain", v. i. [imp. & p. p. Complained; p. pr. & vb. n. Complaining.] Etym: [F. complaindre, LL. complangere; com- + L. plangere to strike, beat, to beat the breast or head as a sign of grief, to lament. See Plaint.]

1. To give utterance to expression of grief, pain, censure, regret. etc.; to lament; to murmur; to find fault; — commonly used with of. Also, to creak or squeak, as a timber or wheel. O lose of sight, of three I most complain! Milton.

2. To make a formal accusation; to make a charge. Now, Master Shallow, you'll complain of me to the king Shak.

Syn. — To repine; grumble; deplore; bewail; grieve; mourn; regret; murmur.

COMPLAIN
Com*plain", v. t.

Defn: To lament; to bewail. [Obs.]
They might the grievance inwardly complain. Daniel.
By chaste Lucrece's soul that late complain'd Her wrongs to us. Shak.

COMPLAINABLE
Com*plain"a*ble, a.

Defn: That may be complained of. [R.] Feltham.

COMPLAINANT
Com*plain"ant, n. Etym: [F. complaignant, p. pr. of complaindre.]