adjective, formal - not candid or sincere, often pretending ignorance; giving a false appearance of frankness
adjective - (of a person, esp. a woman) lacking style or neatness in dress or appearance
adjective - deliberately expressionless or emotionless in appearance or delivery, especially when making a joke or saying something amusing
noun - the act of renovating, redesigning, or improving something; a significant change or improvement in appearance or function