© 2026 Sloth Lingo. Learn easy. Lounge wisely.

slacken

Intermediate (B1)

IPA: /ˈslækən/

KK: /ˈslækən/

transitive verb
Definition

To make something less tight, intense, or fast; to loosen or slow down.


Example

I slackened the rope to give the boat more room to move.


Tense Forms

Past: slackened

Past Participle: slackened


Conversation
Sloth A
Hey, do you think we should slacken the schedule for our project a bit?
Sloth B
Yeah, it's been pretty intense lately, and we could use a breather.
Sloth A
I agree, a little more time might help us do a better job.
Sloth B
Exactly! Let’s propose a later deadline to the team.

Synonyms & Antonyms
Synonyms
loosen
relax
diminish
Antonyms
tighten
intensify
accelerate
Root Explanation

Slacken → It is formed from "slack" (from Old English *slæc*, meaning loose or not tight) and "-en" (a suffix used to form verbs). The word "slacken" means to make something less tight or to loosen it.

Memory Tip

Think of something becoming 'loose' ('slack') when you 'make' it less tight ('-en').

Visually Confused Words
sacken
swacken
slocken
slicken
blacken
slake
slickens
Is this page helpful?