IPA: /ˈlɪtərəl.nəs/
KK: /ˈlɪtərəlnəs/
The quality of being exact and not figurative or metaphorical; the state of taking words in their most basic sense without exaggeration or metaphor.
His literalness made it difficult for him to understand jokes or sarcasm.
Literalness → It is formed from "literal" (from Latin *literalis*, meaning pertaining to letters or the letter of the law) and "-ness" (meaning the state or quality of). The word "literalness" refers to the quality of being true to the letter or exact in meaning.
Think of 'literal' meaning true to the letters and 'ness' indicating a state — so literalness is the state of being true to the exact meaning.