Irregular Shapes with Names and Pictures

Irregular shapes are shapes that do not follow the standard patterns of regular geometric figures, often having sides, angles, or outlines of different sizes. Common examples include irregular polygons, crescent shapes, starfish shapes, cloud shapes, and abstract forms. Unlike regular shapes, irregular shapes may have unequal sides or angles, making them interesting to identify in nature, art, and everyday objects. Learning irregular shape names in English can improve vocabulary and help students understand basic geometry, recognize different forms, and describe objects more accurately. In this article, you will learn irregular shapes with names and pictures, helping kids, students, teachers, beginners, and English learners recognize different irregular shapes and learn their names easily.

Table of Contents

20 Names of Irregular Shapes

Scalene
Quadrilateral
Pentagon
Hexagon
Heptagon
Octagon
Nonagon
Decagon
Concave
Convex
Arrowhead
Dart
Kite
Trapezoid
Parallelogram
Rhombus
Rectangle
Star
Crescent
Semicircle

Names of Irregular Shapes with Pictures

Scalene
A scalene triangle has three sides of different lengths and three different angles. It is a common type of irregular triangle.
Quadrilateral
An irregular quadrilateral has four sides and four corners. Its sides or angles are not all equal.
Pentagon
An irregular pentagon has five sides and five angles. Its sides or angles differ from one another.
Hexagon
An irregular hexagon has six sides and six corners. Its sides or angles are not all equal.
Heptagon
An irregular heptagon has seven sides. Its sides or angles can have different measurements.
Octagon
An irregular octagon has eight sides and eight corners. Its sides or angles are not all equal.
Nonagon
An irregular nonagon has nine sides. Its outline can look uneven because its sides or angles differ.
Decagon
An irregular decagon has ten sides and ten corners. Its sides or angles may have different measurements.
Concave
A concave shape has an inward dent along its outline. One or more corners bend inward.
Convex
A convex shape has no inward dents. All its corners point outward.
Arrowhead
An arrowhead resembles the pointed tip of an arrow. Its outline has angled sides and sharp corners.
Dart
A dart is a four-sided shape with an inward corner. Its outline resembles a pointed arrowhead.
Kite
A kite is a four-sided shape with two pairs of equal neighboring sides. It resembles a flying kite.
Trapezoid
A trapezoid is a four-sided shape with at least one pair of parallel sides. Its other sides may differ.
Parallelogram
A parallelogram has two pairs of opposite sides that are parallel. Opposite sides are also equal in length.
Rhombus
A rhombus has four equal sides. Its corners can have different angles, making it look like a tilted diamond.
Rectangle
A rectangle has four right angles. Its opposite sides are equal, but its neighboring sides may differ.
Star
A star shape has pointed tips around its outline. It can have different numbers of points and sizes.
Crescent
A crescent is a curved shape with two pointed ends. It resembles a thin crescent moon.
Semicircle
A semicircle is half of a circle. It has one straight edge and one curved edge.

Names of Irregular Shapes with Pictures

List of Irregular Shapes with Names

L-Shape
T-Shape
U-Shape
Z-Shape
Cross
Steps
Zigzag
Spiral
Blob
Cloud
Amoeba
Leaf
Drop
Kidney
Heart
Bean
Broken Circle
Ellipse
Freeform
Wavy Shape

Learn 20 Irregular Shapes in English

L-Shape
An L-shape resembles the letter L. Its two sections meet at a corner.
T-Shape
A T-shape resembles the letter T. It has a horizontal top and a vertical stem.
U-Shape
A U-shape resembles the letter U. Its two sides connect at the bottom.
Z-Shape
A Z-shape resembles the letter Z. Its ends connect through a diagonal section.
Cross
A cross has arms extending from a central point. Its arms may have different lengths.
Steps
A steps shape resembles a staircase. Its outline has connected horizontal and vertical edges.
Zigzag
A zigzag has connected lines that repeatedly change direction. It creates a sharp, uneven pattern.
Spiral
A spiral is a curved line that winds around a central point. It can move inward or outward.
Blob
A blob is a rounded shape with an uneven outline. It has no fixed geometric form.
Cloud
A cloud shape has a soft outline with several rounded bumps. It resembles a fluffy cloud.
Amoeba
An amoeba shape has an uneven outline with rounded extensions. It resembles a microscopic amoeba.
Leaf
A leaf shape usually has a pointed tip and curved edges. Its middle is often wider.
Drop
A drop shape has a rounded bottom and a pointed top. It resembles a falling water droplet.
Kidney
A kidney shape has a rounded outline with one side curving inward. It resembles a kidney bean.
Heart
A heart shape has two rounded tops and a pointed bottom. It is widely used in decorative designs.
Bean
A bean shape has a curved body and rounded ends. One side usually bends inward.
Broken Circle
A broken circle resembles a circle with a gap. Part of its curved outline is missing.
Ellipse
An ellipse is an oval-shaped curve. It is longer in one direction than the other.
Freeform
A freeform shape has an uneven outline without a fixed geometric pattern. It can have curves and corners.
Wavy Shape
A wavy shape has a curved outline that rises and falls. It resembles waves in water.