Wellnigh is a word that means "almost" or "nearly." However, there are many other synonyms that can be used to convey a similar meaning. Some examples of these synonyms include "practically," "virtually," "all but," "close to," "near," "borderline," "essentially," and "nearly." Alternatively, phrases such as "almost there," "just about," and "pretty much" can also be used to express a similar idea. Depending on the context and tone of the writing, different synonyms may be more appropriate. Therefore, it is important to understand the nuances and differences between these words in order to choose the best one for your writing.