We don't have synonyms for inunctum yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are punctum, inunct and inuncted.
(n) :
a place set apart, as with a sanctum sanctorum; a private retreat or workroom
"1848 For myself, I had no need to make any change; I should not be called upon to quit my sanctum of the schoolroom; for a sanctum it was now become to me, -- "a very pleasant refuge in time of trouble." Charlotte Bronte, Jane Eyre,"
(n) :
a place set apart, as with a sanctum sanctorum; a private retreat or workroom
"1848 For myself, I had no need to make any change; I should not be called upon to quit my sanctum of the schoolroom; for a sanctum it was now become to me, -- "a very pleasant refuge in time of trouble." Charlotte Bronte, Jane Eyre,"