1. Discouraging by hindering 
2. Preventing realization or attainment of a desire
   - frustrative, thwarting

1. Hinder or prevent (the efforts, plans, or desires) of
   "What ultimately frustrated every challenger was Ruth's amazing September surge"
   - thwart, queer, spoil, scotch, foil, cross, baffle, bilk 
2. Treat cruelly
   - torment, rag, bedevil, crucify, dun

See also: discouraging, frustration, preventative, preventive

Type of: beset, chevvy [non-standard], chevy, chivvy, chivy, forbid, foreclose, forestall, harass, harry, hassle, molest, plague, preclude, prevent, provoke

• anchovy sauce
• anchusa
• Anchusa capensis
• Anchusa officinalis
• Anchusa riparia
• anchylosis
• ancien régime
• ancient
• Ancient Greek
• ancient history
• ancient pine
• anciently
• ancientness
• ancients
• ancillary
• Ancistrodon
• Ancohuma
• ancon
• anconeous muscle
• anconeus
• Ancylidae
• ancylose
• Ancylostomatidae
• Ancylus
• Ancylus fluviatilis