1) Hypogeusesthesia 
diminished sense of taste
Blunting of the sense of taste. ... Origin: hypo-+ G. Geusis, taste ... (05 Mar 2000) ... 
(hi″po-goo´zhә) diminished sensitivity of taste; called also amblygeustia and hypogeusesthesia.
Type: Term Pronunciation: hī′pō-gū′sē-ă Definitions: 1. Diminished sense of taste due to transport disorders (in accessing the interior of the taste bud) or to sensorineural disorders (affecting the gustatory sensory cells or nerves, or the central gustatory neural pathways); may be hereditary or aquired; may be...
Hypogeusia: A reduced ability to taste things (to taste sweet, sour, bitter, or salty substances). Some people cannot detect tastes and are said to have ageusia.
hypogeusia (high poh GYOO see uh) Blunting the sense of taste or a diminished acuteness of the sense of taste.