indispensable

Mycroft draws four hundred and fifty pounds a year, remains a subordinate, has no ambitions of any kind, will receive neither honour nor title, but remains the most indispensable man in the country.”

Right wing three-quarter missing, indispensable to-morrow.

“Then,” said he, “you are ready to pay the official visits, which are absolutely indispensable?”

“They were indispensable.”