As adjectives the difference between fictitious and undefined

is that fictitious is not real; invented; contrived while undefined is lacking a definition or value.

As a noun subsidence

is the process of becoming less active or severe.

As an adjective undefined is

lacking a definition or value.

As a proper noun chrissie

is a diminutive of the female given names christina or christine.

As an adjective undefined is

lacking a definition or value.

As a verb rock

is (rycka).

As an adjective undefined is

lacking a definition or value.

As a noun cosmology

is the study of the physical universe, its structure, dynamics, origin and evolution, and fate.

As an adjective undefined is

lacking a definition or value.

As a noun promethazine

is a first-generation h1 receptor antagonist, antihistamine and antiemetic medication with strong sedative effects.

As an adjective undefined is

lacking a definition or value.

As a proper noun consort

is a village in alberta, canada.

As an adjective undefined is

lacking a definition or value.

As a noun parody

is a work or performance that imitates another work or performance with ridicule or irony.

As a verb parody

is to make a parody of something.

As an adjective undefined is

lacking a definition or value.

As a noun kettle

is a vessel for boiling a liquid or cooking food, usually metal and equipped with a lid.

As a verb kettle

is (british|of the police) to contain demonstrators in a confined area.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between lament and null

is that lament is an expression of grief, suffering, or sadness while null is zero, nil; the cardinal number before einn.

As a verb lament

is to express grief; to weep or wail; to mourn.