1. Free from interruption; not molested or hindered; free from perturbation; calm; tranquil; serene: not agitated or stirred.

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

• undesturbed,
• undesterbed,
• undistrubed,
• undisterbed,
• undistubed,
• undsterbed,
• undistorded,
• yndisturbed,
• hndisturbed,
• jndisturbed,
• indisturbed,
• 8ndisturbed,
• 7ndisturbed,
• unedisturbed,
• undisturbedd,
• undisturbeds,
• undisturbe,
• undistubred,
• unddisturbed,
• untictured

• undisguised,
• undismayed,
• untasted,
• undiscouraged,
• undisputedly,
• unaddicted,
• undisputable,
• undisclosed,
• untested,
• undistorted,
• undisputed,
• untwisted,
• undistributed,
• undigested,
• unadjusted,
• unadjustable,
• undissolved.

The adverb form of "undisturbed" is "undisturbedly".

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

The plural form of the word "undisturbed" is "undisturbeds"

The singular form of the word "undisturbed" is "undisturbed". The word remains the same in both singular and plural forms.