hissingly in English dictionary hissingly Meanings and definitions of "hissingly" While hissing; in a hissing fashion adverb While hissing; in a hissing fashion more Grammar and declension of hissingly hissingly ( comparative more hissingly, superlative most hissingly) hissingly (comparative more hissingly, superlative most hissingly) more Sample sentences with "hissingly" Declension Stem Try again Available translations Estonian Authors