Meandrous is a word that describes things that are curvy, winding, or circuitous. Synonyms for meandrous include tortuous, serpentine, sinuous, and convoluted. Tortuous refers to things that are twisted or bending in an irregular way, while serpentine is used to describe something that resembles a snake or winding river. Sinuous is a term that is used to describe something that twists and turns smoothly, typically in an S-shape. Finally, convoluted refers to something that is twisted or coiled in a complicated or intricate way. All of these synonyms can be used to describe things that are meandering and wavy in nature.