mealy-mouthedˌmealy-ˈmouthed adjective 
not brave enough or honest enough to say clearly and directly what you really think – used to show disapproval: 
Most people felt Mr Major fought a pretty mealy-mouthed campaign in which radical ideas were either dropped or blunted.
not brave enough or honest enough to say clearly and directly what you really think – used to show disapproval: Most people felt Mr Major fought a pretty mealy-mouthed campaign in which radical ideas were either dropped or blunted.