capable of or tending to change in form or quality or nature; "a mutable substance"; "the mutable ways of fortune"; "mutable weather patterns"; "a mutable foreign policy"
ambiguous (especially in the negative); "she spoke in no uncertain terms"
not established beyond doubt; still undecided or unknown; "an uncertain future"; "a manuscript of uncertain origin"; "plans are still uncertain"; "changes of great if uncertain consequences"; "without further evidence his story must remain uncertain"
lacking or indicating lack of confidence or assurance; "uncertain of his convictions"; "unsure of himself and his future"; "moving with uncertain (or unsure) steps"; "an uncertain smile"; "touched the ornaments with uncertain fingers"
not certain to occur; not inevitable; "everything is uncertain about the army"; "the issue is uncertain"
not consistent or dependable; "an uncertain recollection of events"; "a gun with a rather uncertain trigger"
relating to or containing or caused by mercury; "mercurial preparations"; "mercurial sore mouth"
relating to or having characteristics (eloquence, shrewdness, swiftness, thievishness) attributed to the god Mercury; "more than Mercurial thievishness"
relating to or under the (astrological) influence of the planet Mercury; "the Mercurial canals"
such that alteration is possible; having a marked tendency to change; "changeable behavior"; "changeable moods"; "changeable prices"
varying in color when seen in different lights or from different angles; "changeable taffeta"; "chatoyant (or shot) silk"; "a dragonfly hovered, vibrating and iridescent"
subject to change; "a changeable climate"; "the weather is uncertain"; "unsettled weather with rain and hail and sunshine coming one right after the other"
determined by chance or impulse or whim rather than by necessity or reason; "a capricious refusal"; "authoritarian rulers are frequently capricious"; "the victim of whimsical persecutions"
changeable; "a capricious summer breeze"; "freakish weather"
an architectural partition with a height and length greater than its thickness; used to divide or enclose an area or to support another structure; "the south wall had a small window"; "the walls were covered with pictures"
a masonry fence (as around an estate or garden); "the wall followed the road"; "he ducked behind the garden wall and waited"
a layer of material that encloses space; "the walls of the cylinder were perforated"; "the container's walls were blue"
(anatomy) a layer (a lining or membrane) that encloses a structure; "stomach walls"
anything that suggests a wall in structure or function or effect; "a wall of water"; "a wall of smoke"; "a wall of prejudice"; "negotiations ran into a brick wall"
a vertical (or almost vertical) smooth rock face (as of a cave or mountain)
a difficult or awkward situation; "his back was to the wall"; "competition was pushing them to the wall"