1. Happening by chance, or unexpectedly; non-essential; not necessarily belonging to. Accidental colours those complementary colours seen on a white or light ground after looking steadily for some time at a bright coloured object.

2. A property or quality nonessential; anything accidental.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• acidentaly,
• accidentey,
• accidentall,
• accidentaley,
• accidentas,
• accidential,
• accidenty,
• accedental,
• acidentall,
• accicental,
• accidentaliy,
• accidentle,
• accidentis,
• accidentel,
• accidentl,
• accidentaly,
• acciedental,
• addcidental,
• accidentlly,
• acidental

• accidence,
• academically,
• actinide,
• actinal,
• acidemia,
• accident,
• academia,
• accidentally.

The adjective form of the word "accidental" is "accidental".

The plural of the "accidental" can be the "accidentals".

The singular of the "accidental" can be the "accidental".