From Longman Dictionary of Contemporary Englishinnermostin‧ner‧most /ˈɪnəməʊst $ -nərmoʊst/ adjective [only before noun] 1 PRIVATE/PERSONALyour innermost feelings, desires etc are your most personal and secret ones a man who would never share his innermost thoughts with anyone► see thesaurus at private2 formalIN/INSIDE furthest inside or nearest to the centre OPP outermost the innermost depths of the cave
Examples from the Corpus
innermost• She works with emotionally disturbed people, teaching them to express their innermost feelings through poetry.• He's not the kind of person to reveal his innermost secrets, even to his closest friends. 