Sin importancia.
the opposite of serious could be playful,joyful or happy :)
The opposite is unserious.
The opposite of sociable in Spanish is introvertido.
The opposite of cruel in Spanish is amable.
The opposite of "pésimo" in Spanish is "excelente."
The opposite of "cómodo" in Spanish is "incómodo."
'Opposite' is 'Opuesto' in Spanish.
Morena is the opposite of rubia in Spanish.
The opposite of "fácil" in Spanish is "difícil," which means difficult.
The opposite of "derecha" in Spanish is "izquierda," which means "left."
The opposite of "interesante" in Spanish is "aburrido," which means boring.
The opposite of the Spanish word "feo" is "hermoso."