Describing something that serves no apparent purpose or fails to achieve its natural goal, contrary to the principle of teleology.
From Greek 'dys-' (bad/difficult) + 'teleological', from 'telos' (end/purpose) + 'logy' (study). Emerged in philosophy to describe purposelessness.
Darwin's theory of evolution made 'dysteleological' really important because natural selection can leave organisms with useless structures—like wisdom teeth or the appendix—proving that not everything in nature has a grand purpose.
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