Definition

1. Verb:
   • To make something necessary: To cause something to be required or unavoidable as a condition or consequence.
   • To require as essential: To demand or need something as a necessary part, condition, or element.

Usage and Examples

• Verb:
  • The new safety regulations will necessitate additional training for all staff. (The regulations make the extra training unavoidable.)
  • The complexity of the project necessitates careful planning. (The complexity demands careful planning as an essential requirement.)
  • His sudden illness necessitated a change in our travel plans. (The illness forced a change; it made a change necessary.)

Advanced Usage

• "to necessitate doing something": To make a specific action necessary.
  • The broken lock necessitated calling a locksmith immediately. (The broken lock made it necessary to call a locksmith.)
• "to necessitate that...": To require that a particular condition be met or action be taken.
  • The law necessitates that all drivers have valid insurance. (The law makes it a requirement that all drivers have insurance.)

Variants and Related Words

• Necessity (n): Something that is essential or unavoidable.
  • Food and water are basic necessities.
• Necessary (adj): Required to be done, achieved, or present; essential.
  • It is necessary to wear a seatbelt.
• Necessarily (adv): As a necessary result; inevitably.
  • Expensive tools are not necessarily the best.

Synonyms

• Require: To need for a particular purpose.
• Demand: To ask for forcefully, implying a pressing need.
• Entail: To involve something as a necessary or inevitable part or consequence.
• Call for: To publicly ask for or require.

Antonyms

• Obviate: To remove or avoid a need or difficulty.
  • Automation obviated the need for manual data entry.
• Preclude: To prevent from happening; make impossible.
  • His apology precluded further argument.

Related Phrases and Constructions

• Of necessity: Inevitably; unavoidably.
  • The repairs were lengthy and, of necessity, expensive.
• By necessity: Because it is forced or required by circumstances.
  • He became the leader by necessity when no one else would.

Verb

1. cause to be a concomitant
2. require as useful, just, or proper
   • It takes nerve to do what she did
   • success usually requires hard work
   • This job asks a lot of patience and skill
   • This position demands a lot of personal sacrifice
   • This dinner calls for a spectacular dessert
   • This intervention does not postulate a patient's consent