Difficult and Leaden

Difficult adjective - Requiring considerable physical or mental effort.

Leaden and difficult are semantically related. In some cases you can use "Leaden" instead an adjective "Difficult".

Nearby Word: difficulty

Leaden adjective - Causing weariness, restlessness, or lack of interest.

Difficult and leaden are semantically related. Sometimes you can use "Difficult" instead an adjective "Leaden".

Nearby Word: lead