Difficult or impossible to comprehend or evaluate.
Not ponderable; without sensible or appreciable weight; incapable of being weighed.
An imponderable question.
A factor that cannot be anticipated.
An imponderable substance or body; specifically, in the plural, a name formerly applied to heat, light, electricity, and magnetism.
Occasional; isolated; one-off
Intermediate.
having a positive probability of being left and never being visited again.
Passing or disappearing with time; transitory.
Decaying with time, especially exponentially.
Operating beyond itself; having an external effect.
Passing through; passing from one person to another.
Remaining for only a brief time.
A relatively loud, non-repeating signal in an audio waveform that occurs very quickly, such as the attack of a snare drum.
A homeless person.
homestay
A transient phenomenon, especially an electric current; a very brief surge.
A module that generally remains in memory only for a short time.
Something that is transient.
A person who passes through a place for a short time; a traveller; a migrant worker.