• tailles,
• tirless,
• tapless,
• stailless,
• traillers,
• tilles,
• tailess,
• stailess,
• tailes,
• illess,
• timless,
• toolless,
• ailles,
• toillets,
• talles,
• tailers,
• tearles,
• tereless,
• Falless,
• pallpless

• talkie,
• taillike,
• tails,
• tallis,
• talks,
• tallish,
• talus.

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

The plural form of the word "tailless" is "taillesses".

The singular form of the word "tailless" is "tailless". It is the same form whether it is singular or plural.