slow study

brown study

A melancholy mood accompanied by deep thought; a moody daydream.

do a slow burn

To experience a gradually increasing feeling of anger or frustration; to slowly burn.

quick study

One who is capable of learning at a fast pace; a fast learner.

slow burn

Something that emerges or unfolds slowly or gradually.

slow march

A progression or unfolding of events which occurs in an unhurried, steady, deliberate manner.

slow off the mark

slow to act or react

slow on the uptake

Of a person, slow to comprehend or process intellectually.

slow up

To slow; to slow down; to decelerate.