Approximate and Qualitative

Approximate adjective - Being such only when compared to something else.

Qualitative and approximate are semantically related In some cases you can replace term "Qualitative" with "Approximate", this adjectives are similar.

Nearby Words: approximately, approximation, approximative, approximated

Qualitative adjective - Involving distinctions based on qualities.

Approximate and qualitative are semantically related in concerning qualities not quantities topic. You can use "Approximate" instead an adjective "Qualitative".

Nearby Words: quality, qualitatively