Difficult and Irreducible

Difficult adjective - Requiring considerable physical or mental effort.

Irreducible and difficult are semantically related. In some cases you can replace term "Irreducible" with "Difficult", this adjectives are similar.

Nearby Word: difficulty

Irreducible adjective - Incapable of being made smaller or simpler.

Difficult and irreducible are semantically related. Sometimes you can use "Difficult" instead an adjective "Irreducible".