Robert Plutchik created a wheel of #emotions in 1980 which consisted of 8 basic emotions and 8 advanced emotions each composed of 2 basic ones.

Eight Basic Emotions

#Joy
#Sadness
#Trust
#Disgust
#Fear
#Anger
#Surprise
#Anticipation
Basic Emotion ⇄ Basic Opposite

Joy ⇄ Sadness
Trust ⇄ Disgust
Fear ⇄ Anger
Surprise ⇄ Anticipation
Combination of Basic Emotions (A + B) = Advanced Human Emotions (Opposite Advanced Emotion in Parentheses)

Anticipation + Joy = Optimism (Disapproval)
Joy + Trust = Love (Remorse)
Trust + Fear = Submission (Contempt)
Fear + Surprise = Awe (Aggression)
Surprise + Sadness = Disappointment (Optimism)
Sadness + Disgust = Remorse (Love)
Disgust + Anger = Contempt (Submission)
Anger + Anticipation = Aggression (Awe)