utmost
adjective
[ ˈʌtməʊst ]
• most extreme; greatest.
• "a matter of the utmost importance"
Similar:
greatest,
maximum,
greatest possible,
highest,
most,
most extreme,
greatest amount of,
uttermost,
maximal,
extreme,
supreme,
paramount,
superlative,
enormous,
major,
Opposite:
least possible,
very little,
utmost
noun
• the greatest or most extreme extent or amount.
• "a plot that stretches credulity to the utmost"
Origin:
Old English ūt(e)mest ‘outermost’ (see out, -most).