As a noun throttle

is a valve that regulates the supply of fuel-air mixture to an internal combustion engine and thus controls its speed; a similar valve that controls the air supply to an engine.

As a verb throttle

is to cut back on the speed of (an engine, person, organization, network connection, etc).

As an adjective undefined is

lacking a definition or value.

As adjectives the difference between invert and undefined

is that invert is (chemistry) subjected to the process of inversion; inverted; converted while undefined is lacking a definition or value.

As a verb invert

is to turn (something) upside down or inside out; to place in a contrary order or direction.

As a noun invert

is (archaic) a homosexual man.

As a noun jubilation

is a triumphant shouting; rejoicing; exultation.

As an adjective undefined is

lacking a definition or value.

As a noun blessing

is some kind of divine or supernatural aid, or reward.

As an adjective undefined is

lacking a definition or value.

As a noun glazier

is one who glazes; a craftsman who works with glass, fitting windows, etc.

As an adjective undefined is

lacking a definition or value.

As a noun town

is a settlement; an area with residential districts, shops and amenities, and its own local government; especially one larger than a village and smaller than a city.

As an adjective undefined is

lacking a definition or value.

As a noun graft

is (label) a small shoot or scion of a tree inserted in another tree, the stock of which is to support and nourish it the two unite and become one tree, but the graft determines the kind of fruit or graft can be (graff) ("canal") or graft can be (label) work; labor.

As a verb graft

is (label) to insert (a graft) in a branch or stem of another tree; to propagate by insertion in another stock; also, to insert a graft upon or graft can be to work.

As an adjective undefined is

lacking a definition or value.

As adjectives the difference between intenable and undefined

is that intenable is (obsolete) untenable while undefined is lacking a definition or value.

As a noun migration

is .

As an adjective undefined is

lacking a definition or value.

As adjectives the difference between disheartening and undefined

is that disheartening is causing to lose heart; making despondent or gloomy; scare; discourage while undefined is lacking a definition or value.

As a verb disheartening

is .