Transient, a.
Etymology: [L. transiens, -entis, p. pr. of transire, transitum, to go or pass over. See Trance.]
The bubble is here for a moment and then it is gone. That is transient.
Soap Bubbles, Jean Siméon Chardin, ca. 1733–34. The Met.1. Passing before the sight or perception, or, as it were, moving over or across a space or scene viewed, and then disappearing; hence, of short duration; not permanent; not lasting or durable; not stationary; passing; fleeting; brief; transitory; as, transient pleasure. "Measured this transient world." Milton.
2. Hasty; momentary; imperfect; brief; as, a transient view of a landscape.
3. Staying for a short time; not regular or permanent; as, a transient guest; transient boarders. [Colloq. U.S.]
Syn. -- Transient, Transitory, Fleeting. Transient represents a thing as brief at the best; transitory, as liable at any moment to pass away. Fleeting goes further, and represents it as in the act of taking its flight. Life is transient; its joys are transitory; its hours are fleeting. What is loose love A transient gust. Pope If [we love] transitory things, which soon decay, Age must be loveliest at the latest day. Donne. O fleeting joys Of Paradise, dear bought with lasting woes. Milton. -- Tran"sient*ly, adv. -- Tran"sient*ness, n.
1 other Webster entry under this spelling
Transient, n.
That which remains but for a brief time. Glanvill.
Shades of meaning
Transient and transitory are both derived from the same original source (L. trans, over, and eo, go), denoting that which quickly passes or is passing away, but there is between them a fine shade of difference. A thing is transient which in fact is not lasting; a thing is transitory which by its very nature must soon pass away; a thing is temporary (L. tempus, time) which is intended to last or be made use of but a little while; as, a transient joy; this transitory life; a temporary chairman. Ephemeral (Gr. epi, on, and hemera, day) literally lasting but for a day, often marks more strongly than transient exceeding brevity of duration; it agrees with transitory in denoting that its object is destined to pass away, but is stronger, as denoting not only its certain but its speedy extinction; thus that which is ephemeral is looked upon as at once slight and perishable, and the word carries often a suggestion of contempt; man's life is transitory, a butterfly's existence is ephemeral; with no solid qualities or worthy achievements a pretender may sometimes gain an ephemeral popularity. That which is fleeting is viewed as in the act of passing swiftly by, and that which is fugitive (L. fugio, flee) as eluding attempts to detain it; that which is evanescent (L. evanesco, from e, out, and vanus, empty, vain) as in the act of vanishing even while we gaze, as the hues of the sunset.