Relating to, resembling, or characteristic of cretinism or the condition of being a cretin; showing traits associated with thyroid hormone deficiency.
From cretinism plus the suffix -ic (making it adjectival). The -istic variant emphasizes the systematic nature of the condition or its traits.
Medical terminology often uses both -tic and -istic forms (like fanatic vs. fanatistic), though the -istic versions feel more formal and are used when describing systematic characteristics.
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