abstractest
adj. C2 Proficiency ab·stractest
adj. the most difficult to understand or the most general. It describes something that is far removed from real life or specific details.
adj. the superlative form of 'abstract', indicating the highest degree of being removed from concrete reality or specific instances.
The most abstractest part of the painting is the background.
Among the various philosophical theories presented, this one was the most abstractest and hardest for the students to grasp.
The poet's final stanza was the most abstractest, using metaphors so far removed from the physical world that even the most dedicated critics struggled to find a clear meaning.
abstract + -est