Final answer:
Romantic love, as per Robert Sternberg's triangular theory of love, is defined by passion and intimacy, but lacks commitment, and often represents the experience of falling in love.
Step-by-step explanation:
According to the triangular theory of love by Robert Sternberg, the type of love that is defined by having passion and intimacy, but no commitment, is known as romantic love. This form of love is often typified by the intense emotions and physical attraction one feels when falling in love. It differs from other forms of love such as consummate love, which includes all three components of love (intimacy, passion, and commitment), and infatuation, which is characterized by passion without intimacy or commitment.