Distrust of, or lack of confidence in, oneself or in one's own powers.

One whose attitude is positive, optimistic, confidently affirmative. / (derogatory) One who habitually agrees uncritically.

(firearms) A device in certain firearms that uncocks the weapon.

(theology) Pertaining to aeviternity, a state between eternity, which is unchanging and outside of time, and temporality, which is subject to change and to death or annihilation. Things aeviternal ...