Unhappy is the opposite of happy because it represents a state of not feeling joy or contentment. Let's break down the answer in detail:

Unhappy as the opposite of happy:

a) Happy is a positive emotion that signifies feelings of joy, contentment, and satisfaction. It is a state of being where one experiences positive emotions and a sense of well-being.

c) On the other hand, unhappy is the opposite of happy. It represents a state of not feeling joy or contentment. When someone is unhappy, they may feel sad, frustrated, or dissatisfied with their current situation or circumstances.

Understanding opposites:

To understand the opposite of a word, we need to consider its meaning and context. In the case of happy, it is associated with positive emotions and a sense of well-being. Therefore, the opposite would be a state where these positive emotions are absent or replaced by negative emotions.

Unhappy captures this opposite state as it conveys the absence of happiness and the presence of negative emotions. It indicates a lack of joy, contentment, or satisfaction.

Other options:

a) Happen: This word does not represent the opposite of happy. Instead, it refers to something taking place or occurring.

b) Happiness: This option is not the opposite of happy but rather a noun form of the word happy. Happiness represents the state of being happy, which is the opposite of being unhappy.

d) Helpful: This word is unrelated to the opposite of happy. It refers to someone or something that provides assistance or aid.

Conclusion:

In summary, the opposite of happy is unhappy. Unhappy represents a state of not feeling joy, contentment, or satisfaction. It indicates the absence of positive emotions and the presence of negative emotions.

Yes I can explain.

Happy means joyful and unhappy means sorrowful.

Opposite word means - a word that expresses a meaning opposed to the meaning of another word.

Hence opposite of happy is unhappy .