discreditable Definition

discredit
noun

1. Loss of good reputation, or the cause of it.

verb

1. To make someone or something be disbelieved or regarded with doubt or suspicion.

Thesaurus: doubt, question, disbelieve, distrust, mistrust, dispute, discount; Antonym: believe.
2. To damage the reputation of someone.

Thesaurus: blame, censure, disparage, reproach, disgrace, degrade, slur, slander, smear, defame, dishonour, vilify.

Derivative: discreditable
adj

Causing loss of reputation
Thesaurus: unworthy, dishonourable, infamous, ignoble, ignominious, improper, scandalous, shameful, blameworthy, unprincipled, disgraceful; Antonym: worthy.

Derivative: discreditably
adverb

Etymology: 16c.