What is another word for responsive to?
Pronunciation: [ɹɪspˈɒnsɪv tuː] (IPA) 
There are several synonyms for the phrase "responsive to." Firstly, "sensitive to" is often used when talking about someone who is aware or attuned to other people's needs. "Attentive to" is another term that describes someone who pays close attention to a situation and responds accordingly. Additionally, "responsible to" can be used to describe someone who answers to a higher authority and takes their duties seriously. "Reactive to" is a synonym used to describe someone who reacts quickly to a situation or stimuli. Lastly, "reactive towards" can be used to describe someone who responds to a situation with intense emotion or hostility. Overall, these synonyms all describe some level of responsiveness, whether it be to a situation or to other people.
