clever

Our predecessors also developed some clever cooling technologies.

They can be proud of the younger version of themselves for determining such a clever defensive strategy.

Other times, we realize that we need to go to a different destination, but with a little clever planning, we can transfer to another train without backtracking or losing our progress.

The goal must be to turn air conditioning into a technology of last resort, using the clever green solutions of the past, and adapting the way we live and work in a hotter world.

As people with an allergic response to warmheartedness, somewhere in our past, we are liable to have experienced severe letdown, against which we had to insulate ourselves with a plethora of clever defensive strategies.