longterm

As a noun deadline

is a date on or before which something must be completed.

As a verb deadline

is (military) to render an item non-mission-capable; to ground an aircraft, etc.

As an adjective longterm is

.

As adjectives the difference between lasting and longterm

is that lasting is persisting for an extended period of time while longterm is .

As a verb lasting

is .

As a noun lasting

is continuance; endurance.

As adjectives the difference between longterm and undefined

is that longterm is while undefined is lacking a definition or value.

As an adjective longterm

is .

As a noun long is

hair; fur; coat.

As adjectives the difference between longterm and protracted

is that longterm is while protracted is lasting for a long time or longer than expected or usual.

As a verb protracted is

(protract).

As adjectives the difference between ongoing and longterm

is that ongoing is continuing, permanent while longterm is .

As a noun ongoing

is something that is going on; a happening.