1. Destitute of feathers; unfledged.

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

• featurless,
• netherless,
• fetherless,
• featherinses,
• deatherless,
• ceatherless,
• veatherless,
• geatherless,
• teatherless,
• featherlees,
• featherleses,
• featherlesse,
• featherles,
• featherlass,
• weatherlyness,
• feathereness,
• featherneses,
• feathreness,
• feathernness,
• pratyerless

• fatherlike,
• fatherless,
• fatherliness,
• featherlike,
• featureless.

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

The plural form of the word "featherless" is "featherlesses." However, it is not a commonly used word, so the need to use its plural form may be rare.

The singular form of the word "featherless" is "feather"