As a noun scream

is a loud, emphatic, exclamation of extreme emotion, usually horror, fear, excitement et cetera can be the exclamation of a word, but is usually a sustained, high-pitched vowel sound, particularly /æ/ or /i/.

As a verb scream

is to cry out with a shrill voice; to utter a sudden, sharp outcry, or shrill, loud cry, as in fright or extreme pain; to shriek; to screech.

As an adjective undefined is

lacking a definition or value.

As a proper noun inquisition

is (historical) a tribunal of the roman catholic church set up to investigate and suppress heresy.

As an adjective undefined is

lacking a definition or value.

As adjectives the difference between commercial and undefined

is that commercial is of or pertaining to commerce while undefined is lacking a definition or value.

As a noun commercial

is an advertisement in a common media format, usually radio or television.

As adjectives the difference between wanted and undefined

is that wanted is wished for; desired; sought while undefined is lacking a definition or value.

As a verb wanted

is (want).

As a noun stigmatism

is (optics) image-formation property of an optical system which focuses a single point source in object space into a single point in image space.

As an adjective undefined is

lacking a definition or value.

As a noun goulash

is a stew of beef or veal and vegetables, flavoured with paprika.

As an adjective undefined is

lacking a definition or value.

As a noun kb

is kilobar.

As an adjective undefined is

lacking a definition or value.

As adjectives the difference between itinerant and undefined

is that itinerant is which travels to perform its functions while undefined is lacking a definition or value.

As a noun itinerant

is a homeless person.

As a noun handbook

is a topically organized book of reference on a certain field of knowledge, disregarding the size of it.

As an adjective undefined is

lacking a definition or value.

As adjectives the difference between irrecoverable and undefined

is that irrecoverable is not recoverable or admitting of recovery; incapable of being recovered: as, an irrecoverable debt while undefined is lacking a definition or value.