Vocabulary Entry

doubtful

|adjective • noun • verb

adjective

feeling uncertain or unsure about something.

Example Sentences

"She had a doubtful expression on her face."

"His commitment to the project was doubtful after the recent setbacks."

"The scientists were doubtful about the safety of the new drug."

noun

Example Sentences

"There was a sense of doubt in his voice."

"Her doubts about the decision led to a lengthy discussion."

"In times of uncertainty, doubt can be a common feeling."

verb

Example Sentences

"I doubt that he will come to the party."

"She doubted her ability to finish the race."

"They began to doubt the validity of the information."