having or feeling no doubt or uncertainty; confident and assured | not subject to change or variation especially in behavior |
certain to occur; destined or inevitable | relating to a person who does something regularly |
exercising or taking care great enough to bring assurance | marked by firm determination or resolution; not shakable |
reliable in operation or effect | securely in position; not shaky |
physically secure or dependable | not liable to fluctuate or especially to fall |
certain not to fail | not easily excited or upset |
infallible or unfailing | |
(of persons) worthy of trust or confidence | |
impossible to doubt or dispute | |