Timid recalca la falta de valor y de atrevimiento, e indica una extrema precaución y un miedo de aventurarse en lo desconocido <he made several timid attempts to get her attention>.
Fainthearted sugiere ser carente de valor y resolución <mocked his brother for being fainthearted about the plan>. antonyms: courageous, bold
Apprehensive connota ver el futuro con ansiedad o alarma <the children were clearly apprehensive around their new stepfather>. antonyms: bold
