Difficult and Vacant

Difficult adjective - Requiring considerable physical or mental effort.

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

Nearby Word: difficulty

Vacant adjective - Lacking contents that could or should be present.

Difficult and vacant are semantically related. Sometimes you can use "Difficult" instead an adjective "Vacant".

Nearby Words: vacate, vacancy, vacantly