• synonyms


or sym·met·ric

[si-me-tri-kuhl or si-me-trik]
See more synonyms for symmetrical on Thesaurus.com
  1. characterized by or exhibiting symmetry; well-proportioned, as a body or whole; regular in form or arrangement of corresponding parts.
  2. Geometry.
    1. noting two points in a plane such that the line segment joining the points is bisected by an axis: Points (1, 1) and (1, −1) are symmetrical with respect to the x-axis.
    2. noting a set consisting of pairs of points having this relation with respect to the same axis.
    3. noting two points in a plane such that the line segment joining the points is bisected by a point or center: The points (1, 1) and (−1, −1) are symmetrical with respect to (0, 0).
    4. noting a set consisting of pairs of points having this relation with respect to the same center.
  3. Often symmetric. Mathematics.
    1. noting a square matrix that is equal to its transpose.
    2. noting a dyad or dyadic that is equal to its conjugate.
    3. noting a relation in which one element in relation to a second implies the second in relation to the first.
  4. Botany.
    1. divisible into two similar parts by more than one plane passing through the center; actinomorphic.
    2. (of a flower) having the same number of parts in each whorl.
  5. Chemistry.
    1. having a structure that exhibits a regular repeated pattern of the component parts.
    2. noting a benzene derivative in which three substitutions have occurred at alternate carbon atoms.
  6. affecting corresponding parts simultaneously, as certain diseases.
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Origin of symmetrical

First recorded in 1745–55; symmetr(y) + -ical
Related formssym·met·ri·cal·ly, adverbsym·met·ri·cal·ness, nounnon·sym·met·ri·cal, adjectiveun·sym·met·ri·cal, adjectiveun·sym·met·ri·cal·ly, adverb

Synonyms for symmetrical

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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for unsymmetrical

lumpy, asymmetrical, elliptical, jagged, craggy, unbalanced, top-heavy, uneven, unequal, irregular, unstable, wobbly, lopsided, unsteady, inequitable, one-sided, disproportionate, patchy, bumpy, rough

Examples from the Web for unsymmetrical

Historical Examples of unsymmetrical

  • When leaves are unsymmetrical, like the begonias, the pattern is unsymmetrical also.

    Colouration in Animals and Plants

    Alfred Tylor

  • We have learnt to write "asymmetry," but not to avoid "unsymmetrical."

  • Unsymmetrical, that is, when the circles of the flower or some of them differ in the number of their members.

  • The increase in goods of different kinds is, of course, unsymmetrical.

  • Thirteenth century and unsymmetrical—you must remember that.

British Dictionary definitions for unsymmetrical


  1. possessing or displaying symmetryCompare asymmetric
  2. maths
    1. (of two points) capable of being joined by a line that is bisected by a given point or bisected perpendicularly by a given line or planethe points ( x, y ) and ( –x, –y ) are symmetrical about the origin
    2. (of a configuration) having pairs of points that are symmetrical about a given point, line, or planea circle is symmetrical about a diameter
    3. (of an equation or function of two or more variables) remaining unchanged in form after an interchange of two variablesx + y = z is a symmetrical equation
  3. chem (of a compound) having a molecular structure in which substituents are symmetrical about the molecule
  4. botany another word for isomerous
  5. Also: symmetric (of a disease, infection, etc) affecting both sides of the body or corresponding parts, such as both legs
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Derived Formssymmetrically, adverbsymmetricalness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for unsymmetrical



1570s (implied in symmetrically), from symmetry + -ical.

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Online Etymology Dictionary, © 2010 Douglas Harper