dis ‧ cour ‧ a ‧ ging /dɪsˈkʌrɪdʒɪŋ $ -ˈkɜːr-/ BrE AmE adjective
[ Word Family: adjective : ↑ encouraged ≠ ↑ discouraged , ↑ encouraging ≠ ↑ discouraging ; verb : ↑ encourage ≠ ↑ discourage ; noun : ↑ encouragement ≠ ↑ discouragement ; adverb : ↑ encouragingly ≠ ↑ discouragingly ]
making you lose the confidence or determination you need to continue doing something OPP encouraging :
The results were discouraging.
—discouragingly adverb