Adjectives

(s)askew, awry, cockeyed, lopsided, wonky, skew-whiffturned or twisted toward one side“a … youth with a gorgeous red necktie all awry” (G.K.Chesterton), “his wig was, as the British say, skew-whiff”
(s)rickety, shaky, wobbly, wonkyinclined to shake as from weakness or defect“a rickety table”, “a wobbly chair with shaky legs”, “the ladder felt a little wobbly”, “the bridge still stands though one of the arches is wonky”