1. Bashfully.

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

• ashuredly,
• ashamely,
• zshamedly,
• sshamedly,
• wshamedly,
• qshamedly,
• aahamedly,
• azhamedly,
• axhamedly,
• adhamedly,
• aehamedly,
• awhamedly,
• asgamedly,
• asbamedly,
• ashamedlly,
• ashimedly,
• ashamadly,
• alrmedly,
• allarmedly,
• athanelly

• asymmetry,
• ashamed,
• assumed.

The adjective form of the word "ashamedly" is "ashamed".

The plural form of the word "ashamedly" is "ashamedlies." However, it is worth mentioning that this form is not commonly used and it is usually preferred to rephrase the sentence to avoid using the plural form of this adverb.

The singular form of the word "ashamedly" is "ashamedly". The word does not change in form whether it is used in singular or plural contexts.