dissymmetrical
Lacking mirror symmetry
Dissymmetrical describes something lacking symmetry or having parts that don't mirror each other properly.
The term appears in scientific and technical contexts—chemistry, biology, crystallography—where precise asymmetry matters: dissymmetrical molecules, dissymmetrical crystal structures.
It overlaps with asymmetrical but can imply a more specific type of imbalance rather than complete absence of symmetry.
Not exactly alike
- unequalNot the same
- lopsidedUnequally balanced
- unevenNot smooth or balanced
- skewedAsymmetrically shifted
disproportionate · anisotropic · incongruent · mismatched · disparate · dissimilar · unbalanced · off-kilter
Abnormally or poorly formed
- distortedMisshapen from original form
- warpedBent out of true
- twistedWound around itself
- irregularDeviating from normal patterns
crooked · malformed · deformed · contorted · bent · askew · off-center · misaligned
Of atomic structure analysis
- molecularOf tiny particles
- opticalOf vision or light
- isomericSame atoms, different bonds
- rotationalConcerning circular movement
reflective · geometric · spatial · morphological · bilateral · radial · lattice · crystalline
nonidentical
Not exactly alike
skewed · disproportionate · anisotropic · incongruent · mismatched · disparate · dissimilar · unbalanced · off-kilter · one-sided
misshapen
Abnormally or poorly formed
irregular · crooked · malformed · deformed · contorted · bent · askew · off-center · misaligned · skew
crystallographic
Of atomic structure analysis
rotational · reflective · geometric · spatial · morphological · bilateral · radial · lattice · crystalline · polarity
dissymmetricalsymmetrical
Even on all sides
symmetric · balanced · proportional · even · regular
symmetry, asymmetrical, symmetrical, symmetric, asymmetric, symmetrically, asymmetrically, antisymmetric, nonsymmetrical