synamyn 
synamyn is a simple RStudio addin based on ropenscilabs/syn that lets you replace the selected word with a synonym or antonym.
Install it
You can install the latest version of synamyn from GitHub with:
# install.packages("remotes")
remotes::install_github("gadenbuie/synamyn")Use it
To use synamyn, highlight a single word and choose one of the two addins
-
Replace Word with Synonym
-
Replace Word with Antonym
and a dialog will appear open deploy materialize.
Learn more about syn at https://syn.njtierney.com/.