Liny is a word that describes something that is thin and flexible. There are several synonyms for this word. The first is slender, which refers to something that is long and thin. Another synonym is wiry, which implies a kind of toughness in the thinness. Delicate is another word that is often used instead of liny, describing something that is fragile and dainty. Lithe is another synonym that is used to describe thin things with grace and flexibility. Finally, in some cases, narrow can be used as a synonym for liny particularly when referring to narrow or thin paths or roads.