Although-Whereas | Commonly Confused Words

Although

/ɔːlˈðəʊ/

Used to introduce a statement that makes the main statement seem surprising or unlikely

Although I write boldly I am a shy man.And although Gabel inquired:Although Nicholas was happy, too, he was worried about Smike.

This word has no antonyms

/weərˈæz/

Used to introduce a contrast between two facts or statements

Whereas Fifi and Joanna were absolutely right.Whereas Clyde was more soft and vague and fumbling.Whereas we know better.

This word has no antonyms

Although is often used to introduce a statement that makes the main statement seem surprising.
Although can indicate a contrast but is often used to present a concession to the main point.
Whereas usually connects two contrasting ideas or statements in a more formal context.
Whereas is used to directly compare two situations.
If youre contrasting, whereas' is a good choice because it explicitly sets up a comparison.