sluggish

Sluggish is a related term of heavy.

As adjectives the difference between sluggish and heavy

is that sluggish is habitually idle and lazy; slothful; dull; inactive; as, a sluggish man while heavy is (of a physical object) having great weight or heavy can be having the heaves.

As an adverb heavy is

heavily.

As a noun heavy is

a villain or bad guy; the one responsible for evil or aggressive acts.

As a verb heavy is

to make heavier.

Apathetic is a synonym of sluggish.

As adjectives the difference between sluggish and apathetic

is that sluggish is habitually idle and lazy; slothful; dull; inactive; as, a sluggish man while apathetic is void of feeling; not susceptible of deep emotion; passionless; indifferent.

As a verb languish

is to lose strength and become weak; to be in a state of weakness or sickness.

As an adjective sluggish is

habitually idle and lazy; slothful; dull; inactive; as, a sluggish man.

Unexcitable is a related term of sluggish.

As adjectives the difference between unexcitable and sluggish

is that unexcitable is not excitable while sluggish is habitually idle and lazy; slothful; dull; inactive; as, a sluggish man.

Stoical is a related term of sluggish.

As adjectives the difference between stoical and sluggish

is that stoical is enduring pain and hardship without showing feeling or complaint while sluggish is habitually idle and lazy; slothful; dull; inactive; as, a sluggish man.

As adjectives the difference between quiescent and sluggish

is that quiescent is inactive, at rest, quiet while sluggish is habitually idle and lazy; slothful; dull; inactive; as, a sluggish man.

As adjectives the difference between sluggish and sloppy

is that sluggish is habitually idle and lazy; slothful; dull; inactive; as, a sluggish man while sloppy is very wet; covered in or composed of slop.

Torpid is a related term of sluggish.

As adjectives the difference between torpid and sluggish

is that torpid is unmoving, dormant or hibernating while sluggish is habitually idle and lazy; slothful; dull; inactive; as, a sluggish man.

As adjectives the difference between tranquil and sluggish

is that tranquil is free from emotional or mental disturbance while sluggish is habitually idle and lazy; slothful; dull; inactive; as, a sluggish man.

As adjectives the difference between sluggish and shaky

is that sluggish is habitually idle and lazy; slothful; dull; inactive; as, a sluggish man while shaky is shaking]] or [[tremble|trembling.