Harrowingly is an adverb that describes something that is distressingly and painfully intense. If we look for synonyms for this word, a few options we can consider are chillingly, shockingly, alarmingly, or unnervingly. One can use any of these words depending on the context and the level of emotional intensity required. For instance, chillingly can be used when we are talking about something evoking a deep sense of fear, while unnervingly can emphasize something that is very unsettling. Regardless of the synonym used, the intention behind harrowingly remains the same, to convey a message of deep distress and emotional struggle.