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See also: improbó and ímprobo



improbo (feminine singular improba, masculine plural improbi, feminine plural improbe)

  1. hard, laborious (work)
  2. (literary) dishonest

Derived terms[edit]



From in- (not) +‎ probō.



improbō (present infinitive improbāre, perfect active improbāvī, supine improbātum); first conjugation

  1. I disapprove
  2. I blame, condemn, reject


   Conjugation of improbo (first conjugation)
indicative singular plural
first second third first second third
active present improbō improbās improbat improbāmus improbātis improbant
imperfect improbābam improbābās improbābat improbābāmus improbābātis improbābant
future improbābō improbābis improbābit improbābimus improbābitis improbābunt
perfect improbāvī improbāvistī improbāvit improbāvimus improbāvistis improbāvērunt, improbāvēre
pluperfect improbāveram improbāverās improbāverat improbāverāmus improbāverātis improbāverant
future perfect improbāverō improbāveris improbāverit improbāverimus improbāveritis improbāverint
passive present improbor improbāris, improbāre improbātur improbāmur improbāminī improbantur
imperfect improbābar improbābāris, improbābāre improbābātur improbābāmur improbābāminī improbābantur
future improbābor improbāberis, improbābere improbābitur improbābimur improbābiminī improbābuntur
perfect improbātus + present active indicative of sum
pluperfect improbātus + imperfect active indicative of sum
future perfect improbātus + future active indicative of sum
subjunctive singular plural
first second third first second third
active present improbem improbēs improbet improbēmus improbētis improbent
imperfect improbārem improbārēs improbāret improbārēmus improbārētis improbārent
perfect improbāverim improbāverīs improbāverit improbāverīmus improbāverītis improbāverint
pluperfect improbāvissem improbāvissēs improbāvisset improbāvissēmus improbāvissētis improbāvissent
passive present improber improbēris, improbēre improbētur improbēmur improbēminī improbentur
imperfect improbārer improbārēris, improbārēre improbārētur improbārēmur improbārēminī improbārentur
perfect improbātus + present active subjunctive of sum
pluperfect improbātus + imperfect active subjunctive of sum
imperative singular plural
first second third first second third
active present improbā improbāte
future improbātō improbātō improbātōte improbantō
passive present improbāre improbāminī
future improbātor improbātor improbantor
non-finite forms active passive
present perfect future present perfect future
infinitives improbāre improbāvisse improbātūrus esse improbārī improbātus esse improbātum īrī
participles improbāns improbātūrus improbātus improbandus
verbal nouns gerund supine
nominative genitive dative/ablative accusative accusative ablative
improbāre improbandī improbandō improbandum improbātum improbātū




  1. dative masculine singular of improbus
  2. dative neuter singular of improbus
  3. ablative masculine singular of improbus
  4. ablative neuter singular of improbus