As a verb slump

is (lb) to collapse heavily or helplessly.

As a noun slump

is a heavy or helpless collapse; a slouching or drooping posture; a period of poor activity or performance, especially an extended period.

As an adjective lackluster is

lacking brilliance or intelligence.

As an adjective sluggish

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

As a verb slump is

(lb) to collapse heavily or helplessly.

As a noun slump is

a heavy or helpless collapse; a slouching or drooping posture; a period of poor activity or performance, especially an extended period.

As nouns the difference between falter and welter

is that falter is butterfly while welter is welter (boxing class).

As a noun parkland

is land suitable for use as a park.

As an adjective undefined is

lacking a definition or value.

As an adjective subordinative

is tending to subordinate; expressing subordination.

As a verb subordinated is

(subordinate).

As an adjective postbaccalaureate

is subsequent and in addition to the baccalaureate, or bachelor's, degree.

As a noun bachelor is

an academic degree without specification of the field of studies.

As a verb bundle

is .

As a noun handful is

the amount that a hand will grasp or contain.

As a noun bulletin

is .

As a verb quite is

.

As a noun baron

is baron.

As an adjective desolate is

deserted and devoid of inhabitants.

As a verb desolate is

to deprive of inhabitants.