(astrology) of or relating to four of the signs of the zodiac, Gemini, Virgo, Sagittarius, and Pisces, which are associated with the quality of adaptability Compare cardinal (sense 9), fixed (sense 10)
late 14c., "liable to change," from O.Prov. mutable, from L. mutabilis "changeable," from mutare "to change," from PIE base *mei- "to change, go, move" (cf. Skt. methati "changes, alternates, joins, meets;" Avestan mitho "perverted, false;" L. meare "to go, pass," migrare "to move from one place to another;" O.C.S. mite "alternately;" Czech mijim "to go by, pass by," Pol. mijam "avoid;" Goth. maidjan "to change;" Hitt. mutai- "to be changed into"); with derivatives refering to the exchange of goods and services within a society as regulated by custom or law (cf. L. mutuus "done in exchange," munus "service performed for the community, duty, work"). Related: Mutability.