Difficult and Leaner

Difficult adjective - Requiring considerable physical or mental effort.

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

Nearby Word: difficulty

Leaner noun - (horseshoes) the throw of a horseshoe so as to lean against (but not encircle) the stake.

Difficult and leaner are semantically related. Sometimes you can use "Difficult" instead an adjective "Leaner".