1. Belonging to trials of trained strength, as in wrestling, boxing, running, &c.; strong; robust; vigorous.

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

• acletic,
• althletics,
• atlatic,
• athiestic,
• athletice,
• althletic,
• athleic,
• atheletics,
• atthletic,
• althetic,
• aethetic,
• athleties,
• athlectics,
• athelitic,
• athlethics,
• ahtletic,
• arthmetic,
• authetic,
• athlet,
• athleths

• athleticism,
• ateleiotic,
• athletics,
• atilt,
• athlete.

The adjective form of the word "athletic" is "athletically".

The plural form of "athletic" is "athletics"

The singular form of the word "athletic" is "athlete"