| 单词 | unknown quantity |
| 释义 | unknown quantitySEE SYNONYMS FOR unknown quantity ON THESAURUS.COM An unpredictable person or thing, as in We don't know how the new pitcher will do—he's an unknown quantity. This expression comes from algebra, where it signifies an unknown numerical value. Its figurative use dates from the mid-1800s. Words nearby unknown quantityunknit, unknot, unknowable, unknowing, unknown, unknown quantity, Unknown Soldier, unlace, unlade, unlaid, unlamented The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. |
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