ridiculous - Deserving or inviting mockery or laughter due to being absurd or unreasonable; outrageously unreasonable or exaggerated in a way that provokes disbelief.
They laughed when he made the ridiculous claim that he could lift a car by himself, but then lo and behold they watched him actually do it.
rendezvous - An arrangement to meet somebody at a particular time and place, especially between people who have great affection towards each other.
After Romeo and Juliet met at the masked ball, they arranged a rendezvous in the garden to continue their relationship.