1. Offensive to the mind
   - abhorrent, obscene, repugnant, repulsive 
2. Unequivocally detestable
   "detestable vices"
   - abominable, execrable, odious

See also: hateful, offensive

• synset
• syntactic
• syntactic category
• syntactical
• syntactically
• syntactician
• syntagm
• syntagma
• syntagmatic
• syntax
• syntax checker
• syntax error
• syntax language
• synth
• synthesis
• synthesise
• synthesiser
• synthesist
• synthesize
• synthesizer
• synthetase
• synthetic
• synthetic cubism
• synthetic fiber
• synthetic fibre