1. [adjective] Not savory; without flavor.
2. [adjective] Of bad taste; distasteful.
3. [adjective] Making an activity undesirable.
4. [adjective] Disreputable, not respectable, of questionable moral character.
5. [adjective] Morally offensive; 'an unsavory reputation'; 'an unsavory scandal'.
6. [adjective] Not pleasing in odor or taste.