Meaning of ESSENTIAL in English

ESSENTIAL

adj. 1 indispensable, necessary, requisite, required, important, imperative, vital, material, quintessential A strong defence is essential to peace 2 fundamental, basic, intrinsic, elemental, elementary, principal, primary, key, main, leading, chief Yeast or baking powder is an essential ingredient of bread

Oxford thesaurus English vocab.      Английский словарь Оксфорд тезаурус.