Al-Mutlaq is a Lafzh (wording) that indicates a Madlool (indicated meaning) that is Shaa’i (widespread or universal) in its Jins (kind/type).

In other words, it is the Lafzh that indicates a Fard (individual element or matter) or non-specified Afraad (individual elements or matters) and without an expressional restriction. This is like the Alfaazh (worded expressions): Rajul (man), Rijaal (men), Kitaab (book) and Kutub (books).

For instance if it was to be said:

The Lafzh ‘Rijaal’ (men) does not specify who the men are and so they are any men, and the Lafzh ‘Kitaab’ (book) means any book without being specified or being restricted (Taqyeed).

Al-Muqayyad (the restricted) is the Lafzh that has indicated to a meaning (Madlool) that is widespread or universal in its Jins (kind/type) whilst being restricted (Taqyeed) by a Wasf (description) from amongst the Awsaaf (descriptions).