IPA: /ɪnˈtɛnsɪvnəs/
KK: /ɪnˈtɛnsɪvnəs/
The state or quality of being very strong or concentrated in effect or degree.
The intensiveness of the training program helped the athletes improve their performance significantly.
Intensiveness is formed from "intensivus" (from Latin, meaning to stretch or strengthen) and the suffix "-ness" (meaning the state or quality of). The word refers to the quality or state of being intense or having a high degree of strength or concentration.
Think of 'intense' as something that is 'stretched' or 'strengthened' — and '-ness' indicates a state. This helps you remember that 'intensiveness' refers to the quality of being very intense.