The phrase "most forestlike" describes something that resembles a forest in some way. However, there are many synonyms for this phrase that can be used to describe the same thing in different ways. Some possible synonyms include "wooded," "sylvan," "leafy," "lush," "verdant," "green," "foliated," "arboreal," "woody," "forested," "jungle-like," "thicketed," and "overgrown." Depending on the context in which the phrase is being used, one of these synonyms may be more appropriate or effective than the others. Ultimately, the choice of synonym should be guided by the writer's purpose, audience, and tone.