un ‧ di ‧ lut ‧ ed /ˌʌndaɪˈluːtəd◂, ˌʌndaɪˈluːtɪd◂/ BrE AmE adjective
1 . literary an undiluted feeling is very strong and not mixed with any other feelings:
undiluted joy
2 . an undiluted liquid has not been made weaker by adding water:
undiluted fruit juice