Bright

allegro

(of a colour: not muted or pale — see also bold, vivid)

allegro

(in good spirits — see also happy, optimistic)

brillante

(emitting much light; visually dazzling — see also luminous, radiant)

brillante

(of a colour: not muted or pale — see also bold, vivid)

brillante

(having a clear, quick intellect — see also intelligent)

felice

(in good spirits — see also happy, optimistic)

intelligente

(having a clear, quick intellect — see also intelligent)

lucente

(emitting much light; visually dazzling — see also luminous, radiant)

luminoso

(emitting much light; visually dazzling — see also luminous, radiant)

positivo

(in good spirits — see also happy, optimistic)