slackest >> slak
Definition: [adjective] not taut or held tightly in position; loose.
Example: a slack rope
Definition: [adjective] (of business or trade) characterized by a lack of work or activity; quiet.
Example: business was rather slack
Definition: [adjective] having or showing laziness or negligence.
Example: slack accounting procedures
Definition: [adjective] lewd.
Example: the veteran king of slack chat
Definition: [adjective] (of a tide) neither ebbing nor flowing.
Example: soon the water will become slack, and the tide will turn