zweifelhaft
Translation
doubtful, questionable, dubious, shady
Examples
Sein Alibi ist zweifelhaft.
His alibi is doubtful.
Das ist eine zweifelhafte Ehre.
That is a dubious honour.
Grammar Patterns
((sth.)) is doubtful sth. is doubtful His alibi is doubtful.
a doubtful ((sth.)) a doubtful sth. That is a dubious honour.
Similar Words
Synonyms: fragwürdig, ungewiss, dubios; Antonyms: sicher, gewiss, eindeutig
Etymology
From 'Zweifel' (doubt) + the suffix '-haft' (having the quality of). 'Zweifel' itself comes from 'zwei' (two), suggesting being torn between two options.
Memory Tips
Think of something being 'hafted' or stuck with 'Zweifel' (doubt). If it's full of doubt, it's 'zweifelhaft'.