Related Clues:

• Uncertainties
• Possibilities
• Indefinite answers
• Invitees who didn't R.S.V.P., say
• Halfhearted R.S.V.P.'s
• Scuppered by me as candidates
• They're not certain
• Some R.S.V.P.s
• Wishy-washy invitees
• Unhelpful RSVPs