bedenklich
Translation
worrying, alarming, questionable, dubious
Examples
Sein Gesundheitszustand ist bedenklich.
His health condition is worrying.
Das ist eine bedenkliche Entwicklung.
That is an alarming development.
Grammar Patterns
((to be)) worrying/questionable His health condition is worrying.
Similar Words
besorgniserregend (worrying), fragwürdig (questionable); Antonym: unbedenklich (harmless)
Etymology
From the verb 'bedenken' (to consider, think about) + the adjective suffix '-lich'. Something that makes you 'think hard' is 'worrying' or 'questionable'.
Memory Tips
If you have to 'denken' (think) a lot about something, it's probably 'bedenklich' (worrying).