What is another word for runs hot and cold?
Pronunciation: [ɹˈʌnz hˈɒt and kˈə͡ʊld] (IPA) 
The phrase "runs hot and cold" describes a person or situation that fluctuates between two extreme states or attitudes. There are many synonyms for this expression such as "inconsistent," "unreliable," "moody," "wavering," "capricious," "changeable," "temperamental," "fickle," and "volatile." These synonyms describe the same behavior of a person or thing that is inconsistent and unpredictable. Someone who is described this way may change their mind frequently, be indecisive, or have a changeable mood. Similarly, a situation that "runs hot and cold" may be unstable, unpredictable, or unreliable. Using synonyms for this phrase will help to convey a clearer and more precise description of a person or situation that is inconsistent.
