Definition of (as) keen as mustard
- I gave him the job because he was willing to learn and seemed as keen as mustard.
: intellectually alert : having or characteristic of a quick penetrating mind
: extremely sensitive in perception
: sharply contested
: to make a loud and long cry of sorrow : to lament with a keen
: to make a sound suggestive of a loud cry of sorrow
: to lament, mourn, or complain loudly
: a lamentation for the dead uttered in a loud wailing voice or sometimes in a wordless cry
: a pungent yellow condiment consisting of the pulverized seeds of various mustard plants (such as Sinapis alba, Brassica juncea, and B. nigra) either dry or made into a paste or sauce (as by mixing with water or vinegar) and sometimes adulterated with other substances (such as turmeric) or mixed with spices
: the seed of a mustard plant used as a spice and in medicine as a stimulant and diuretic, an emetic, or a counterirritant
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