transitive & intransitive verb . To make or become slower; slow down.

transitive & intransitive verb . To make or become less tense, taut, or firm; loosen.

transitive & intransitive verb . To make or become less vigorous, intense, or severe; ease.

To become slack.

To become less active; fall off: as, trade slackened; the demand slackens; prices slacken

To become remiss or neglectful, as of duty.

To make slack or slacker.

To abate; moderate; lessen; diminish the intensity, severity, rate, etc., of; hence, to mitigate; assuage; relieve: as, to slacken one's pace; to slacken cares.

To be or become remiss in or neglectful of; remit; relax: as, to slacken labor or exertion.

noun. The slags or cinder from previous fusions, used in smelting operations to mix with natural ores and to retard fusion of the ores until reduction shall have proceeded to the desired point.

noun. A spongy, semivitrifled substance which miners or smelters mix with the ores of metals to prevent their fusion.

verb. To gradually decrease in intensity or tautness; to become slack.

verb. To make slack, less taut, or less intense.

verb. make less active or fast

verb. make slack as by lessening tension or firmness

verb. become looser or slack

verb. become slow or slower

"Think I’ll just kind of slacken up on this G.C.L. stuff now."

slack  slacker  

decrease  lessen  minify  weaken  

Machen  blacken  bracken  

abate  abate  allay  alleviate  anesthetize  

slakin  

slackened  slackening  slackens