The word "insularly" refers to something that is done in an insular or isolated manner. There are several synonyms for this word that can be used in different contexts. For instance, the word "solitarily" is a synonym that signifies something that is done alone or in seclusion. Another synonym for "insularly" is "narrowly", which suggests that the focus is very limited or confined. "Exclusively" is also a synonym for "insularly" and conveys the idea of something being done only with a particular group or set of people. Alternatively, "privately" is a synonym that focuses on something being done away from public attention or scrutiny. Overall, the different synonyms for "insularly" can be used to tailor the meaning to suit the desired context.