uppermost

Etymology

upper + -most

adj

1. At or nearest the top of something.
   Well, to me, if you are restricting it to economic policy — because I can surely think of some noneconomic policy concerns that are more uppermost in my mind. 2005, United States. Congress. House. Committee on Ways and Means, Tax reform: hearing before the Committee on Ways and Means, U.S. House of Representatives, One Hundred Ninth Congress, first session, June 8, 2005, Volume 36, Issues 109-123
   As a result, it is not always an easy matter to evaluate, as an outsider, the effectiveness of a life-task strategy (i.e., sometimes the objective indicators of success and failure do not coincide with the goals most uppermost in a person's mind). 2015, Lawrence A. Pervin, Goal Concepts in Personality and Social Psychology
2. Highest in rank, importance, etc.
   For him, as for his colleagues, concern with priestly comportment and purity is uppermost. 2001, David L. Lieber, Jules Harlow, Etz Hayim: Torah and Commentary, page 735

adj

1. (rare) superlative form of upper: most upper

adv

1. In the highest position.