It is an irregular polygon
There is no specific name for a polygon in which all the angles are different or where the sides are all different.
square?
An irregular polygon.
triangel
That is called a regular polygon.
Decagon.
Hexagon.
An irregular polygon.
A polygon that has congruent sides and congruent angles is called a Regular polygon. If the number of sides is given, you can be more specific. Some examples: 3 congruent sides/angles = equilateral triangle 4 congruent sides/angles = square 5 congruent sides/angles = regular pentagon 6 congruent sides/angles = regular hexagon ...and so on, by adding "regular" in front of the shape's name.
by every letter on the vertex or side you can put a letter and that will name the polygon.
There are infinitely many quadrangles - all of which are polygons - that have sides of different length and angles that are not right angles. There is, however, no specific name for such quadrangles because there are so many different possible shapes.
A rhombus