Some meanings of some names may not seem to manifest as conspicuously as others; their expression may not be easily observable. So how are they expressed, how can we observe them?
Such divine names, manifest certain primary meanings in a way that is befitting to the Absolute One. Their opposite meanings (antonyms) for example the opposite of Nur which is darkness, or the opposite of Knowledge which is ignorance, do not actually exist, as they are by definition the lack of light or knowledge. But they are perceived to exist as reflections or compositions of the divine names, as per the divine will. And these meanings are also of divine wisdom.
Anything that is perceived as absent, is perceived as such in respect to the composition, for in respect to Allah, every act is in its state of perfection. Even what we call darkness, the absence of light, is of divine perfection. Every quality of divine perfection is expressed through its opposite quality, which is also of divine wisdom and perfection. For if what we call darkness, which is the absence of light, was not observable, the light and perfection of Nur couldn’t be observable either.
If the name al-Aleem (The One who, with the quality of His knowledge, infinitely knows everything in every dimension with all its facets) wasn’t expressed, we would never have known ignorance, the lack of knowledge, and hence the perfection and value of knowledge would never have been discerned.
The opposites of the meanings of all the divine names are expedient for the perfection of the divine names to be observed through them - through their not so conspicuous manifestation. And this too is based on divine wisdom; it is of divine perfection.
In point of fact, the meanings of such names cannot be ‘not’ expressed. Take for example the name Nur, its meaning is manifest from pre to post eternity, internally and externally, much prevalently. Observing its ‘lack’ thereof is due to the compositional weave of names pertaining to the observer.
Is it not a composition of names that form a ‘person’? If the meaning of a particular name is relatively weak in that composition that ‘person’ will not be equipped to see the expression of that meaning in the outside world. So, it’s not that the meaning isn’t adequately expressed in the outside world, it’s that the person who is observing it isn’t adequately equipped to see it because his compositional structure has less of or a weaker transmission of that name. Hence, he cannot fully perceive the actual counterpart of that meaning externally.