1.Definition: causing fear or dread or terror

"A fearful howling"

Related Adjective(s):awful, dire, direful, dread, dreaded, dreadful, fearsome, frightening, horrendous, horrific, terrible

2.Definition: experiencing or showing fear

"A fearful glance", "Fearful of criticism"

3.Definition: extremely distressing

"Fearful slum conditions"

Related Adjective(s):frightful

4.Definition: lacking courage; ignobly timid and faint-hearted

Related Adjective(s):cowardly

5.Definition: timid by nature or revealing timidity

"Cast fearful glances at the large dog"

Related Adjective(s):timorous, trepid