Meaning of the word improvised in English

What does improvised mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

improvised

US /ˈɪm.prə.vaɪzd/
UK /ˈɪm.prə.vaɪzd/

Adjective

created and performed spontaneously or without preparation

Example:
The comedian's entire set was completely improvised.
They had to use improvised tools to fix the engine.