1. Not diligent in study.

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

• ynstudious,
• hnstudious,
• jnstudious,
• instudious,
• 8nstudious,
• 7nstudious,
• ubstudious,
• umstudious,
• ujstudious,
• uhstudious,
• unatudious,
• unztudious,
• unxtudious,
• undtudious,
• unstudiouis,
• unstudiouse,
• unstudiuos,
• unstudiouss,
• unstudious,
• un studious

• unctuously,
• unstated,
• unctuousness,
• unction,
• unsteadily,
• unstudied,
• unctuous,
• unsteadiness.

The adjective form of the word "unstudious" is "unstudied".

The plural form of the word "unstudious" is "unstudious". The word does not change in its plural form as it is an adjective that describes a characteristic of a person or thing.

The singular form of the word "unstudious" is "unstudious". The word does not change in its singular form.