어떤 일의 진실성이나 신뢰성에 대해 의문을 품거나 성공 가능성에 대해 믿음이 없는 사람.
A person who questions the truth, validity, or reliability of something, or who lacks faith in a particular idea, person, or outcome.
예문:
"The athlete's gold medal performance finally silenced his loudest doubters."
"Even the most cynical doubters were impressed by the efficiency of the new engine."
"She remained a doubter of the project's feasibility until she saw the final results."