2. capable of change: capable of changing, or subject to change
3. genetics tending to undergo mutation: describes a gene or organism that has a tendency to undergo mutation
4. astrology of Gemini, Virgo, Sagittarius, and Pisces: describes the signs of the zodiac Gemini, Virgo, Sagittarius, and Pisces, thought to be characterized by adaptability. See also cardinalfixed
[14th century. < Latin mutabilis< mutare "to change"]
