SLACK

not taut or held tightly in position; loose

(of business or trade) characterized by a lack of work or activity; quiet

having or showing laziness or negligence

lewd

(of a tide) neither ebbing nor flowing

the part of a rope or line which is not held taut; the loose or unused part

a spell of inactivity or laziness

casual trousers

loosen (something, especially a rope)

decrease or reduce in intensity, quantity, or speed

work slowly or lazily

slake (lime)

coal dust or small pieces of coal