Definition

1. Adjective:

   • Lacking protection or support; vulnerable to harm or attack: The word "defenceless" describes a person, animal, or thing that is completely unprotected, unable to defend itself, and therefore extremely vulnerable.
   • Lacking weapons or means for self-defense: It can specifically refer to the absence of physical weapons or effective methods to resist an attack.

2. Adverb:

   • In a manner that lacks protection or defense: The form "defencelessly" describes an action performed while being completely vulnerable and open to attack.

Usage and Examples

• Adjective:

  • The defenceless villagers had no way to fight back against the invaders.
  • A defenceless animal relies on its instincts to hide from predators.
  • He felt defenceless against their harsh criticism.

• Adverb:

  • The small boat drifted defencelessly in the storm.
  • She stood defencelessly before the angry crowd, unable to speak.

Advanced Usage

• "To leave someone/thing defenceless": To remove protection or support, making someone or something vulnerable.
  • The new policy left many workers defenceless against unfair dismissal.
• "To be rendered defenceless": To be made unable to defend oneself, often suddenly.
  • The sudden power outage rendered the security system defenceless.

Variants and Related Words

• Defencelessness (noun): The state of being defenceless.
  • The defencelessness of the newborn birds was touching.
• Defencelessly (adverb): As described above.
• Defenseless (adjective/adverb): The standard American English spelling. The meaning is identical to "defenceless".
  • AmE: The defenseless city was easily captured.

Synonyms

• Vulnerable: Capable of being physically or emotionally wounded; open to attack or damage.
• Helpless: Unable to defend oneself or to act without help; powerless.
• Unprotected: Not shielded or guarded against harm or danger.
• Exposed: Left without shelter or protection; made vulnerable.

Antonyms

• Protected: Kept safe from harm or injury.
• Defended: Resisted an attack; guarded from assault.
• Shielded: Covered or protected with, or as if with, a shield.
• Invulnerable: Impossible to harm or damage.

Related Phrases and Idioms

• At someone's mercy: Completely in the power of another person, in a defenceless position.
  • With their supplies gone, the explorers were at the mercy of the elements.
• Sitting duck: An easy target; someone or something in a very vulnerable position.
  • Without any cover, the soldiers felt like sitting ducks.

Adjective

1. lacking weapons for self-defense
2. lacking protection or support
   • a defenseless child

Adverb

1. without defense
   • the child was standing in the middle of the crossfire, defenselessly