Wiktionary
overcaution
n. excessive caution
Usage examples of "overcaution".
The nervousness he felt and his overcaution had gotten him some good-natured ribbing and derision from his friends.
The service was secretive about both alarming deficiencies, but the submariners themselves all knew about the unreliable magnetic exploders of the Mark Fourteen torpedo, and about the captains who either had to be beached for overcaution or, on the Branch Hoban pattern, fell apart under attack, Aces like Captain Aster who combined cold courage with skill and luck in battle were few.