feel A1

/fiːl/ To experience a physical, emotional, or mental state.

heartfelt C2+

/ˈhɑrtˌfɛlt/ sincere and deeply felt

feeler C2+

/ˈfilɚ/ an antenna or tentacle, or a tentative proposal to test reaction

unfeelingly C2+

/ʌnˈfilɪŋli/ without sympathy or emotion; callously