Harp-shaped refers to a graceful and curved appearance, which has several synonyms. One of the synonyms is "lyre-shaped," as this instrument also has a similar form to a harp with rounded curves. "Sickle-shaped" is another synonym, which alludes to the curved shape of a sickle or crescent moon. "Crescent-shaped" itself is a synonym, representing the curved shape of the moon, while "banana-shaped" implies a similar shape to the fruit. Round, curved, bowed, and arched are other synonyms that describe a similar shape. All these synonyms describe a graceful and elegant shape that is common to objects such as harps.