olemus
Wiktionary, adj:
1. arousing suspicion
Synonym: questionable
2. distrustful or tending to suspect
Synonym: doubtful ; Antonym: unsuspecting
3.expressing suspicion

näiteid
become suspicious -- kahtlustama
suspicious data -- kaheldavad andmed
suspicious transaction -- kahtlane tehing

https://en.wikipedia.org/wiki/Suspicious_activity_report
https://mpdc.dc.gov/whatssuspicious
https://dpss.umich.edu/content/services/report-a-crime/suspicious-behavior/
https://www.activecountermeasures.com/suspicious-traffic-found-what-are-the-next-steps/