спорен

• IPA^(key):

From Proto-Slavic *sъporьnъ, morphologically formed as спор (spor, “dispute, conflict”) +‎ -ен (-en).

спо́рен • (spóren)

1. disputed, contested, challenged

   спо́рна то́чка ― spórna tóčka ― point of discussion; challenged point (in sports)

2. controversial, questionable, polemic (for decision, plan, action)

   Synonyms: полеми́чен (polemíčen), противоречи́в (protivorečív), съмни́телен (sǎmnítelen)

• безспо́рен (bezspóren, “undisputed, uncontested”)

• оспо́рен (ospóren, “disputed, debated”)
• отпо́рен (otpóren, “resistive, defiant”)
• спо́рещ (spórešt, “arguing, contestant”)

• “спорен¹”, in Речник на българския език [Dictionary of the Bulgarian Language] (in Bulgarian), Sofia: Bulgarian Academy of Sciences, 2014
• “спорен”, in Речник на българския език [Dictionary of the Bulgarian Language] (in Bulgarian), Chitanka, 2010
• Todorov, T. A., Racheva, M., editors (2010), “спорен¹”, in Български етимологичен речник [Bulgarian Etymological Dictionary] (in Bulgarian), volume 7 (слòво – теря̀свам), Sofia: Prof. Marin Drinov Pubg. House, →ISBN, page 397

Alternative, extended variant of Proto-Slavic *sporъ (“abundant”) + -ен (-en).

спо́рен • (spóren)

1. prolific, productive, abundant (yielding good results)

   Synonyms: оби́лен (obílen), благода́тен (blagodáten), резулта́тен (rezultáten)

2. successful, good, fine

   Synonym: успе́шен (uspéšen)

   спо́рна ра́бота ― spórna rábota ― good work

• спорина́ (sporiná, “abundance”) (dialectal)
• спор (spor), споре́ж (sporéž, “productive/successful work, endeavour”)

• “спорен²”, in Речник на българския език [Dictionary of the Bulgarian Language] (in Bulgarian), Sofia: Bulgarian Academy of Sciences, 2014
• “спорен (разг.)”, in Речник на българския език [Dictionary of the Bulgarian Language] (in Bulgarian), Chitanka, 2010
• Todorov, T. A., Racheva, M., editors (2010), “спорен²”, in Български етимологичен речник [Bulgarian Etymological Dictionary] (in Bulgarian), volume 7 (слòво – теря̀свам), Sofia: Prof. Marin Drinov Pubg. House, →ISBN, page 397

From Proto-Slavic *sъporěnъ (“lasting, durable”), semantically amalgamated into Etymology 2. Attested in Rupian dialects.

спо́рен • (spóren)

1. (dialectal) abiding, productive, effective over a prolonged period of time

• спо́рян (spórjan), спо́ран (spóran) — in hyper-yakavian dialects

• по́ра (póra, “interval, passage of time”) (dialectal)

• Todorov, T. A., Racheva, M., editors (2010), “спорен²”, in Български етимологичен речник [Bulgarian Etymological Dictionary] (in Bulgarian), volume 7 (слòво – теря̀свам), Sofia: Prof. Marin Drinov Pubg. House, →ISBN, page 397

• просен (prosen), пренос (prenos)

• IPA^(key):

спорен • (sporen) (comparative поспорен, superlative најспорен, abstract noun спорност)

1. controversial, disputable, arguable

• IPA^(key):

спо́рен • (spóren)

1. short masculine singular of спо́рный (spórnyj)