3. The manifestation of contentment or satisfaction; good nature; kindness; civility; affability.
Complacency, and truth, and manly sweetness,
Dwell ever on his tongue, and smooth his thoughts.
Addison.
With mean complacence ne'er betray your trust.
Pope.
Com*pla"cent (?), a. [L. complacens very pleasing, p. pr. of complacere; com- + placere to please: cf. F. complaisant. See Please and cf. Complaisant.] Self-satisfied; contented; kindly; as, a complacent temper; a complacent smile.
They look up with a sort of complacent awe . . . to kings.
Burke.
Com`pla*cen"tial (?), a. Marked by, or causing, complacence. [Obs.] "Complacential love." Baxter.
Com*pla"cent*ly (?), adv. In a complacent manner.
Com*plain" (?), v. i. [imp. & p. p. Complained (?); p. pr. & vb. n. Complaining.] [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 loss of sight, of thee I most complain!
Milton.