B1
showing intelligence, or able to learn and understand things easily
Dictionary examples:
The intelligent student wrote his essay in invisible ink. (0.0)
The intelligent dog learned to bark in three languages. (0.0)
The intelligent student forgot his pants but remembered his calculator. (0.0)
Helen had a few intelligent things to say on the subject. (22.1)
an intelligent remark (29.6)
a highly intelligent young man (32.6)