1. Without necessity.

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

• needlesly,
• needlesss,
• neeedlessly,
• nedlessly,
• meedlessly,
• nwedlessly,
• nsedlessly,
• ndedlessly,
• nredlessly,
• n4edlessly,
• n3edlessly,
• newdlessly,
• nesdlessly,
• neddlessly,
• nerdlessly,
• ne4dlessly,
• needlesslyy,
• neadlessly,
• Unendlessly,
• ceelessly

• Needles,
• nettlesome,
• needless,
• needle cast,
• Nettles.

The adjective form of the word "needlessly" is "needless".

The plural form of the word "needlessly" is "needlesslyes." However, please note that this word is not commonly used in the plural form, and its usage may be quite rare.

The singular form of the word "needlessly" is "needless"