Answer: idoubtit

AnswerCrossword Clue
IDOUBTIT"Yeah, right"
IDOUBTIT"Wanna bet?"
IDOUBTIT"Not likely"
IDOUBTIT"Probably not"
IDOUBTITSkeptic's comment
IDOUBTITRemark of the unsold
IDOUBTIT"Baloney!"
IDOUBTIT"Hah!"
IDOUBTIT"That's unlikely"
IDOUBTITSkeptical response
IDOUBTIT"Unlikely"
IDOUBTIT'Sounds unlikely to me'