non-transient

adjective

1. not lasting, enduring, or permanent; transitory.
2. lasting only a short time; existing briefly; temporary: transient authority.
3. staying only a short time: the transient guests at a hotel.
4. Philosophy. transeunt.

noun

5. a person or thing that is transient, especially a temporary guest, boarder, laborer, or the like.
6. Mathematics.
   1. a function that tends to zero as the independent variable tends to infinity.
   2. a solution, especially of a differential equation, having this property.
7. Physics.
   1. a nonperiodic signal of short duration.
   2. a decaying signal, wave, or oscillation.
8. Electricity. a sudden pulse of voltage or current.

adjective

1. for a short time only; temporary or transitory
2. philosophy a variant of transeunt

noun

3. a transient person or thing
4. physics a brief change in the state of a system, such as a sudden short-lived oscillation in the current flowing through a circuit

adj.c.1600, from Latin transiens (accusative transientem) “passing over or away,” present participle of transire “cross over, pass away,” from trans- “across” (see trans-) + ire “to go” (see ion). The noun is first attested 1650s; specific sense of “transient guest or boarder” first recorded 1880.