To resist is to avoid doing what your opponent would like you to do. It is the natural response to a forcing move to resist wherever feasible.
Question: Is there a term in Japanese for not playing the expected response to a kikashi?
xela: This comes under the general heading of kiai ("fighting spirit")?
From Attack and Defense:
This position arises from one of the 35PointJosekis where white invades under the 3-5 point at 3-3. What if afterwards white tries to force with ?
Black is submissive and connects with in bad shape (empty triangle). Black has been completely forced. is light (kikashi).
Black resists being forced by playing . This stone is much more useful than simply connecting at a. White cannot cut directly without being captured.
If white persists with , black connects his stones anyway and white is heavy. Making a kikashi stone heavy is a major error. White is far better off not playing here in the first place, so long as black resists.