1) (of a crime etc) openly and obviously wicked (flagrant)

2) a remark or statement that is obviously true but is used too often and is not interesting, e.g. 'Life has its ups and downs' (platitude)

3) allowing light to pass through so that objects (or at least their outlines) behind can be seen; (of a person, behaviour) obviously insincere etc (transparent)

4) a statement that is obviously true and need not have been made (truism)