What does asymmetrical mean?
Asymmetrical is an adjective describing something whose parts do not correspond evenly across a central line or axis — in other words, something that lacks symmetry. A face, a building, a leaf, or a hairstyle can all be asymmetrical if one side differs from the other in size, shape, or placement. Beyond physical form, the word extends to abstract structures: economists speak of asymmetrical information when one party knows more than another, and strategists describe asymmetrical warfare as conflict between forces of vastly unequal strength. The word derives from the Greek roots meaning 'measured together,' prefixed to indicate absence. In aesthetics, asymmetry is frequently celebrated rather than criticized — modern architecture, abstract art, and contemporary fashion often deliberately embrace uneven composition as a source of energy and interest, making 'asymmetrical' a neutral-to-positive term in creative contexts and a descriptive, technical one elsewhere.
Not symmetrical; having parts that fail to correspond in size, shape, or arrangement on opposite sides of a dividing line.
"The potter deliberately shaped an asymmetrical vase so that no two angles matched."
Often contrasted directly with 'symmetrical' in discussions of art, design, biology, and mathematics.
(Of relationships, systems, or conflicts) marked by inequality or disproportion between opposing elements.
"The treaty formalized what had long been an asymmetrical alliance between the two states."
In military strategy, 'asymmetrical warfare' describes how a weaker force can defeat a stronger one by refusing to fight by its rules — proof that imbalance itself can be a weapon.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of asymmetrical
Asymmetrical comes from the Greek word symmetria ('agreement in measure, due proportion'), formed from syn- ('together') and metron ('measure'). The negative prefix a- ('without') was added to produce the sense of lacking proportion, entering English via Latin and French scholarly usage. The adjective emerged alongside its noun asymmetry, which became established in English in the early modern period as geometry and natural philosophy developed. Its cognates include symmetric, symmetry, metric, and metrical, all tracing back to the same Greek root for measurement.
Related word forms
How asymmetrical is actually used
"Asymmetrical" is the fuller, more common adjective form; "asymmetric" is a shorter variant used especially in technical and scientific writing (e.g., asymmetric synthesis, asymmetric information). The word carries no strong emotional connotation — in art and fashion, asymmetry is often prized as dynamic and modern, while in engineering it may signal imbalance or defect.
Easily confused with asymmetrical
Asymmetrical refers specifically to a lack of mirror-image balance within one thing, while dissimilar means two things are simply not alike.