Acute: (of a bad, difficult, or unwelcome situation or phenomenon) present or experienced to a severe or intense degree.
Example: There was an acute flood.
Anonymous: (of a person) not identified by name; of unknown name.
Example: An anonymous person texted my friend.
Apprehensive:anxious or fearful that something bad or unpleasant will happen.
Example: She was apprehensive about the situation.
Arrogant: having or revealing an exaggerated sense of one's own importance or abilities.
Example: He was very arrogant last time I saw him.
Bestow: confer or present (an honor, right, or gift).
Example: She received a bestow from her teacher.
Donor: a person who donates something, especially money to a fund or charity.
Example: He was a blood donor.
Phobia: an extreme or irrational fear of or aversion to something.
Example: Alex had a phobia about small spaces.
Prominent: important; famous.
Example: Obama is very prominent.
Prudent: acting with or showing care and thought for the future.
Example: My sister is very prudent about us.
Recipient:a person or thing that receives or is awarded something.
Example: He was a recipient of many medals and honorary degrees.