doubtful
/ˈdaʊtfəl/ adjective
NOT PROBABLE › not probable şüpheli, kuşkulu
It's doubtful if/whether he'll be able to come. [+ (that)] It's doubtful that anyone survived the fire.2033 NOT CERTAIN › not feeling certain about something kesin olmayan, şüphe duyulan, belirsiz
She's still doubtful about her decision.1759 doubtfully adverb › şüpheyle