In what fundamental respect does makruh tahrimi differ from haram?

Prescribed Acts and Prohibitions: Fard, Wajib, Sunnah, Nafl, Haram, Makruh, Azimah and Rukhsah

• Doing it without reason is always permitted
• Its required avoidance rests on authoritative but non-decisive evidence
• Avoidance is only a weak preference
• It concerns only spoken wording