Rima suelto refers to a type of poetry that features a free rhyme scheme, where the lines do not adhere to a strict pattern of rhyming. This form allows for greater flexibility in expression and creativity, which is particularly evident in works that tackle complex themes or personal reflection. It can be connected to the expressive nature of modernist poetry, allowing poets like Julia de Burgos to explore their emotions and societal critiques without being confined by traditional structures.