loyal and willing to give your time and energy to something that you believe in:
a committed socialist/Christian/teacher
having promised to be involved in a plan of action:
We are committed to withdrawing our troops by the end of the year.
very willing to give your time and energy to something:
The level of the bid shows we are very committed and serious.
Endowment savings plans are for the committed, long-term investor.
money that has been committed to a particular project, investment, etc. is spent on that project:
He had raised committed financing of £10.4bn.
committed capital