Based on the clue 'adjective meaning past or former', what is the answer?

Based on the clue 'adjective meaning like the author of the prince or...', what is the answer? Based on the clue 'adjective meaning monotonous boring routine yawn', what is the answer? Based on the clue 'adjective meaning neither perpendicular nor parall...', what is the answer? Based on the clue 'adjective meaning obsolete or no longer fashionabl...', what is the answer? Based on the clue 'adjective meaning serving no purpose or more than ...', what is the answer? Based on the clue 'adjective meaning so awe inspiringly beautiful as ...', what is the answer? Based on the clue 'adjective meaning sudden or unexpected such as whe...', what is the answer? Based on the clue 'adjective meaning suitable for sacrifice in the in...', what is the answer?