
Unsavoury
Negative Sensation
Use 'unsavoury' to describe food or smells that make you feel disgusted or sick. 
Intensity Varies
'Unsavoury' can range from slightly unpleasant to extremely offensive, depending on what you're describing. 
Physical Reaction
People often use 'unsavoury' when something affects them physically, like bad taste causing a grimace. 