ununderstanding in English dictionary ununderstanding Meanings and definitions of "ununderstanding" Failure to understand; incomprehension. Not understanding. adjective Not understanding. noun Failure to understand; incomprehension. more Grammar and declension of ununderstanding ununderstanding ( comparative more ununderstanding, superlative most ununderstanding) ununderstanding ( uncountable) ununderstanding (comparative more ununderstanding, superlative most ununderstanding) ununderstanding (uncountable) more Sample sentences with "ununderstanding" Declension Stem Try again Authors