Withered and decaying.
A kite would fit the given description
A square and a rectangle would fit the given description.
A square or a rhombus would fit the given description
A parallelogram. A square or rectangle would also technically fit this description.
A square would fit the given description.
A rhombus would fit the given description
Some varieties of watermelon would fit that description.
The opposite of frigid would be warm. You could use other description words like hot, heated, etc.
The opposite of frigid would be warm. You could use other description words like hot, heated, etc.
That would depend on the context in which brilliant was used. Brilliant can be a description of the cut of a diamond, intelligence, light, lustre or polish etc. The opposite would be different in each circumstance. eg dull, thick, dim, cabochon.
Being called green-eyed would be somewhat negative. It refers to being very envious of someone, which in general in our society is not desirable.
A square, a rhombus, a rectangle or a parallelogram all would fit the given description.