Definitions of afraid:

• adjective:   having feelings of aversion or unwillingness

  Example: "Afraid of hard work"

• adjective:   filled with regret or concern; used often to soften an unpleasant statement

  Example: "I'm afraid I won't be able to come"

• adjective:   feeling worry or concern or insecurity

  Example: "She was afraid that I might be embarrassed"