slackly

adjective

1. slow; idle; sluggish
2. barely moving: said of a current, as of air or water
3. characterized by little work, trade, or business; not busy or active; dull: a slack period
4. loose; relaxed; not tight, taut, or firm
5. easily changed or influenced; weak; lax
6. careless or negligent: a slack workman

transitive verb

1. to make slack; slacken
2. to slake

intransitive verb

1. to be or become slack; slacken
2. to be idle, careless, or negligent

adverb

noun

1. a part that is slack or hangs loose
2. a lack of tension or tautness; looseness
3. a stoppage of movement in a current
4. a dull period; lull