utmost
adj.adj. the greatest possible amount or degree. You use it to show that something is at its absolute limit.
adj. of the greatest possible degree, amount, or extent. Typically used attributively before a noun.
She showed the utmost respect for her elders.
The manager gave the project his utmost attention to ensure no details were missed.
In times of crisis, leaders must demonstrate the utmost courage, balancing decisive action with a deep sense of responsibility for their communities.
PIE word *úd From Middle English utmost, utemest [and other forms], from Old English ūtmest, ūtemest [and other forms], from ūt, ūte (“out; outdoors, outside”) + -mest (suffix meaning ‘furthest’, used to form superlatives of some adjectives) (and conflated with most). Ūt is derived from Proto-Germanic ūt (“out, outward”), from Proto-Indo-European úd (“out, outward”). Equivalent to out + -most.
Almost always used attributively before a noun; rarely used predicatively.