Pararhotacism, also known as rhotacism, refers to the speech impediment where the "r" sound is pronounced improperly. Some synonyms for pararhotacism include difficulty with the "r" sound, rhotacism, and improper pronunciation of the "r" sound. Other terms that may be used for this speech impediment are subtitute sounds, speech substitution, and mispronunciation of "r". Some individuals may also describe this condition as having a thick or heavy accent. Regardless of the terminology used, it is important to understand that pararhotacism is a legitimate speech disorder that can be addressed with the help of a speech therapist or other professionals.