To speak without preparation means the person is not ready. No pre-preparation has been made.
Impromptu or Improvosation is the answer
On the fly means done without prior preparation.
"Impromptu" means something done without preparation or planning. It is typically used to describe a performance or speech that is spontaneous or unrehearsed.
MOTERMOUTH
The word that means to speak evasively is "equivocate."
Impromptu or Improvosation is the answer
Adlib
adlib?
Any performance done without preparation is called an impromptu performance. Impromptu means "on the spot" or without preparation.
ad lib
On the fly means done without prior preparation.
He spoke off the cuff means to speak without planning what you want to say. It means to just say what comes to your mind first. It means to say something without thinking about it. It means to speak without preparing for it.
"Extemporise" means to speak or perform without preparation or planning, often in a spontaneous or impromptu manner. It can refer to delivering a speech, creating music, or acting without a script. The term emphasizes the ability to think on one's feet and adapt to the situation at hand.
It is a synonym for impromptu. It means without preparation. An example would be, "I gave an extemporaneous speech in English class today".
Without previous study or meditation; without preparation; on the spur of the moment; suddenly; extemporaneously; as, to write or speak extempore., Done or performed extempore., Speaking or writing done extempore.
"no taxation without representation" means that they dont want taxes without somebody to speak for them (the colonists)
It means make it up as you go along, basically. A piece of improvised music (as in jazz, for example) is created without preparation.