What is the meaning of fearful?

adjective

• Experiencing or showing fear.
  • usage: "a fearful glance"; "fearful of criticism"
• Causing fear or dread or terror.
  • usage: "the awful war"; "an awful risk"; "dire news"; "a career or vengeance so direful that London was shocked"; "the dread presence of the headmaster"; "polio is no longer the dreaded disease it once was"; "a dreadful storm"; "a fearful howling"; "horrendous explosions shook the city"; "a terrible curse"
  • synonyms: awful, dire, direful, dread, dreaded, dreadful, fearsome, frightening, horrendous, horrific, terrible
• Lacking courage; ignobly timid and faint-hearted."cowardly dogs, ye will not aid me then- P. B. Shelley
  • synonyms: cowardly
• Extremely distressing.
  • usage: "fearful slum conditions"; "a frightful mistake"
  • synonyms: frightful
• Timid by nature or revealing timidity.
  • usage: "timorous little mouse"; "in a timorous tone"; "cast fearful glances at the large dog"
  • synonyms: timorous, trepid