Defn: Having flat sides; hence, tall, or long and lank. [Colloq. U.
S.]
SLACK
Slack, n. Etym: [Cf. Slag.]
Defn: Small coal; also, coal dust; culm. Raymond.
SLACK
Slack, n. Etym: [Icel. slakki a slope on a mountain edge.]
Defn: A valley, or small, shallow dell. [Prov. Eng.] Grose.
SLACK
Slack, a. [Compar. Slacker; superl. Slackest.] Etym: [OE. slak, AS.
sleac; akin to OS. slak, OHG. slah, Prov. G. schlack, Icel. slakr,
Sw. slak; cf. Skr. srsj to let loose, to throw. Cf. Slake.]
Defn: Lax; not tense; not hard drawn; not firmly extended; as, a slack rope.
2. Weak; not holding fast; as, a slack hand. Milton.
3. Remiss; backward; not using due diligence or care; not earnest or eager; as, slack in duty or service. The Lord is not slack concerning his promise, as some men count slackness. 2 Pet. iii. 9.
4. Not violent, rapid, or pressing; slow; moderate; easy; as, business is slack. "With slack pace." Chaucer. Cslack southwest, at midnight was becalmed. Milton. Slack in stays (Naut.), slow in going about, as a ship. — Slack water, the time when the tide runs slowly, or the water is at rest; or the interval between the flux and reflux of the tide. — Slack-water navigation, navigation in a stream the depth of which has been increased, and the current diminished, by a dam or dams.