1. Not trained or disciplined; not educated; irregular; ungovernable.

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

• ontained,
• uktrained,
• obtrained,
• untained,
• entrtained,
• enterained,
• unbranned,
• entained,
• entwained,
• untraind,
• untraced,
• unbraied,
• unerained,
• unddrained,
• undraned,
• undraind,
• ungratifed,
• unbraised,
• unraiced,
• unatrained

• undried,
• undrained,
• undreamed,
• untrammeled,
• untracked,
• untrue,
• undreamed of,
• untraversed,
• unitarian,
• untraveled,
• untrimmed,
• unutterable,
• undraped,
• undressed,
• untrustiness,
• unitary,
• unutterably,
• unturned,
• untrammelled,
• untried,
• unitarianism,
• untreated,
• underage,
• unitard,
• untravelled,
• untraceable,
• undrawn.

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

The plural form of "untrained" is still "untrained" because it is considered an adjective and does not change in the plural form.

The singular form of the word "untrained" is "untrained".