Utmost is a 6 letter English word. It's valid Scrabble word worth 8 points. It's valid Words with friends word worth 10 points.
You can make 74 anagrams from letters in utmost (mosttu).
before 900; Middle English utmest, Old English ūtemest. See out, -most
The wayfarers all gazed in the utmost astonishment at the interruption.
Then he went on quickly, with a tone of utmost positiveness.
He sprang to the rock, and exerted his utmost strength to dislodge it.
UPDATE: As of this writing, news of the utmost ghastliness has emerged from the Brazil camp.
I don't get to spend my money or my time with utmost selfishness.
Lawler notes that in the Zoroastrian religion of the Persians, the rooster was of the utmost importance.
He was still exerting his strength to the utmost when the whistle of the locomotive was heard.
For growing school-kids, healthy lunch is of utmost importance.
I have the utmost respect for them as colleagues, and value the work they do immensely.
They landed, and with the utmost haste proceeded toward the city.