съществен angolul

constitutive▼(very important ; essential)
adjective
[UK: kən.ˈstɪ.tjʊ.tɪv] [US: kən.ˈstɪ.tjʊ.tɪv]

essential▼(of high importance)
adjective
[UK: ɪ.ˈsen.ʃl̩] [US: ə.ˈsen.ʃl̩]

material▼(significant)
adjective
[UK: mə.ˈtɪə.rɪəl] [US: mə.ˈtɪ.riəl]

significant▼(having noticeable effect)
adjective
[UK: sɪɡ.ˈnɪ.fɪkənt] [US: sɪg.ˈnɪ.fɪkənt]

substantive▼(of the essence or essential element of a thing)
adjective
[UK: ˈsʌb.stən.tɪv] [US: ˈsʌb.stən.tɪv]

underlying▼(basic or fundamental)
adjective
[UK: ˌʌn.də.ˈlaɪ.ɪŋ] [US: ˌʌn.dər.ˈlaɪ.ɪŋ]

weighty [weightier, weightiest]▼(rigorous; severe; afflictive)
adjective
[UK: ˈweɪ.ti] [US: ˈweɪ.ti]

materially▼(To a significant degree.)
adverb
[UK: mə.ˈtɪə.rɪə.li] [US: mə.ˈtɪ.riə.li]

substantially▼(to a great extent; in essence; essentially)
adverb
[UK: səb.ˈstæn.ʃə.li] [US: səb.ˈstæn.ʃə.li]

immaterial▼(irrelevant)
adjective
[UK: ˌɪ.mə.ˈtɪə.rɪəl] [US: ˌɪ.mə.ˈtɪ.riəl]

incidental▼(loosely associated; existing as a byproduct, tangent, or accident; being a likely consequence)
adjective
[UK: ˌɪn.sɪ.ˈden.tl̩] [US: ˌɪn.sə.ˈden.tl̩]

inessential▼(not essential)
adjective
[UK: ˌɪ.nɪ.ˈsen.ʃl̩] [US: ˌɪ.nɪ.ˈsen.ʃl̩]

nonessential▼(not essential)
adjective
[UK: ˌnɑː.nə.ˈsen.tʃəl] [US: ˌnɑː.nə.ˈsen.tʃəl]

tenuous▼(insubstantial)
adjective
[UK: ˈte.njʊəs] [US: ˈte.njə.wəs]

two-bit▼(insignificant or worthless)
adjective

accidental▼(a property which is not essential)
noun
[UK: ˌæk.sɪ.ˈden.tl̩] [US: ˌæk.sə.ˈden.tl̩]