Based on the clue 'adjective for a plan that is guaranteed to succeed', what is the answer?

Based on the clue 'adjective for 3 canadian provinces on the gulf of ...', what is the answer? Based on the clue 'adjective for a condition not suitable for surgery', what is the answer? Based on the clue 'adjective for a journalist who accompanies soldier...', what is the answer? Based on the clue 'adjective for a modest young lady with the last e ...', what is the answer? Based on the clue 'adjective for a satellite meaning staying in the s...', what is the answer? Based on the clue 'adjective for a section of beijing historically re...', what is the answer? Based on the clue 'adjective for a speech given without advance prepa...', what is the answer? Based on the clue 'adjective for a substance that evaporates readily ...', what is the answer?