noun. The state or condition of being committed; commitment.

noun. the trait of sincere and steadfast fixity of purpose

"The problem certainly isn't with the committedness of the performances; Cath Whitefield is ferocious as Electra, her face like a knuckle-dustered fist from start almost to finish."

earnestness  serious-mindedness  seriousness  sincerity  

investment  

commitedness  committees