athyrotic

a·thy·rot·ic

(ā'thī-rot'ik),
Relating to athyroidism.

athyrotic

adjective
(1) Hypothyroid. 
(2) Referring to thyroid agenesis, thyroid aplasia.

a·thy·rot·ic

, athyreoytic (ā'thī-rot'ik, -thī-rē-ot'ik)
Relating to athyroidism.
References in periodicals archive ?
Many studies have shown that it outperforms the traditional stalwart of thyroid cancer follow-up, radioactive iodine (RAI) whole body scanning, in such athyrotic patients (15).