Strenuous; diligent.
Intent; focused; showing a lot of concentration.
Serious or honest.
Focused in the pursuit of an objective; eager to obtain or do.
Serious; weighty; of a serious, weighty, or important nature; important.
Possessing or characterised by seriousness.
To be serious with; use in earnest.
Gravity; serious purpose; earnestness.
Seriousness; reality; actuality (as opposed to joking or pretence)
A sum of money paid in advance as a deposit; hence, a pledge, a guarantee, an indication of something to come.
Expressive of strenuous effort.
Of writing or speech or similar, stilted or not natural due to too much effort being used in the production.