Trust is the center of gravity for many things.  If you don’t think that your supervisor or boss trusts you enough to give you greater responsibility or if your job lacks some level of satisfaction, you might be overlooking something.  One thing to think about in this situation is readiness; does your supervisor or boss think you are ready?  Show them that you are.  If able, do things that require you to step outside of your lane.  Demonstrate that you can do your job exceedingly well and take up the reigns of responsibility for something else that is not typically yours to own.  You might be surprised to find that those acts communicate more than words.  Those acts make you indispensable–a ‘linchpin’.  They’ll be more willing to trust you in unique roles and with greater responsibility.  You might even be given the room you need to act on your ideas with more freedom of movement.  Deeper trust is often given to those that appear ready for it.