dismay

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To destroy the courage or resolution of by exciting dread or apprehension.
2. v. To cause to lose enthusiasm; disillusion: was dismayed to learn that her favorite dancer used drugs.
3. v. To upset or alarm.
4. n. A sudden or complete loss of courage in the face of trouble or danger.

Century Dictionary and Cyclopedia

1. To break down the courage of, as by sudden danger or insuperable difficulty; overcome with fear of impending calamity or failure; fill with despairing apprehension; utterly dishearten: usually in the past participle.
2. To defeat by sudden onslaught; put to rout.
3. To disquiet; trouble: usually reflexive.
4. Synonyms To appal, daunt, dispirit, deject, frighten, paralyse, demoralize.
5. To be daunted; stand aghast with fear; be confounded with terror.
6. n. Sudden or complete loss of courage; despairing fear or apprehension; discouraged or terrified amazement; utter disheartenment.
7. n. Ruin; defeat; destruction.
8. n. Synonyms Apprehension, Fright, etc. (see alarm); discouragement.

Wiktionary

1. n. A sudden or complete loss of courage and firmness in the face of trouble or danger; overwhelming and disabling terror; a sinking of the spirits; consternation.
2. n. Condition fitted to dismay; ruin.
3. v. To disable with alarm or apprehensions; to depress the spirits or courage of; to deprive of firmness and energy through fear; to daunt; to appall; to terrify.
4. v. To render lifeless; to subdue; to disquiet.
5. v. To take dismay or fright; to be filled with dismay.

GNU Webster's 1913

1. v. To disable with alarm or apprehensions; to depress the spirits or courage of; to deprive or firmness and energy through fear; to daunt; to appall; to terrify.
2. v. obsolete To render lifeless; to subdue; to disquiet.
3. v. obsolete To take dismay or fright; to be filled with dismay.
4. n. Loss of courage and firmness through fear; overwhelming and disabling terror; a sinking of the spirits; consternation.
5. n. Condition fitted to dismay; ruin.

WordNet 3.0

1. v. fill with apprehension or alarm; cause to be unpleasantly surprised
2. v. lower someone's spirits; make downhearted
3. n. the feeling of despair in the face of obstacles
4. n. fear resulting from the awareness of danger