tim·o·rous /ˈtɪmərəs, ˈtɪmrəs/
  (a.)膽怯的,膽小的,羞怯的
  Tim·or·ous a.
  1. Fearful of danger; timid; deficient in courage.
  2. Indicating, or caused by, fear; as, timorous doubts. “The timorous apostasy of chuchmen.”
  -- Tim*or*ous*ly, adv. -- Tim*or*ous*ness, n.
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  timorous
       adj : timid by nature or revealing timidity; "timorous little
             mouse"; "in a timorous tone"; "cast fearful glances at
             the large dog" [syn: fearful, trepid]