Meaning of Necessary

English: Necessary
Bangla: আবশ্যক, অবশ্যক, অত্যাবশ্যক, আবশ্যকীয়, দরকারী, প্রয়োজনীয়, জরুরি, অবশ্যম্ভাবী, অধিকতর আবশ্যক, অপরিহার্য, বাধ্যতামূলক, যথাকর্তব্য
Hindi: आवश्यक, ज़रूरी, अनिवार्य
Type: Adjective / বিশেষণ / विशेषण
Synonym: Essential , Infallible , Required , Unavoidable , Indispensable , Needed , Requisite , Undeniable , Inevitable , Needful
Antonym: Casual , Needless , Optional , Useless , Contingent , Non-essential , Unnecessary , Worthless

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Bangla Academy Dictionary:

Definition: 1

being essential, indispensable, or requisite: a necessary part of the motor.

Definition: 2

happening or existing by necessity: a necessary change in our plans.

Definition: 3

acting or proceeding from compulsion or necessity; not free; involuntary: a necessary agent.

Definition: 4

Logic. (of a proposition) such that a denial of it involves a self-contradiction. (of an inference or argument) such that its conclusion cannot be false if its supporting premises are true. (of a condition) such that it must exist if a given event is to occur or a given thing is to exist. Compare sufficient (def 2).

Definition: 5

something necessary or required for a particular purpose; necessity.