ephemeral
I
adjective
brevis, brief, caducous, caducus, continuing for a short time, deciduous, disappearing, elusive, enduring only a very short time, ephemerous, evanescent, existing for a short time, fleeting, fugacious, fugitive, hurried, impermanent, lasting a very short time, meteoric, meteorical, momentary, mortal, nondurable, not lasting, passing, perishable, short, short-lived, temporal, temporary, transient, transitory, unenduring, unius diei, unstable, vanishing, volatile
II
index
brief, insubstantial, nonsubstantial (not sturdy), temporary, transient, transitory, volatile
Burton's Legal Thesaurus.
William C. Burton.
2006