Pronunciation: /ɪnˈfæləbəl/
adjective incapable of making mistakes or being wrong
A1 My grandmother's cooking is infallible - she never makes a mistake in the kitchen.
A2 The instructions on the package were infallible, making it easy for me to assemble the furniture.
B1 The scientist believed that her theory was infallible, but further research proved otherwise.
B2 The detective had an infallible instinct for solving crimes, rarely ever making a wrong deduction.
C1 The lawyer's infallible arguments convinced the jury to find the defendant not guilty.
C2 The pilot's infallible skills in flying the plane safely through turbulent weather saved the lives of all passengers on board.
formal The scientist believed his theory to be infallible due to the extensive research and testing conducted.
informal She thinks her plan is infallible, but we'll see how it goes.
slang My grandma's baking skills are infallible - her cookies are always perfect.
figurative His charisma was so strong, it was like he had an infallible charm that no one could resist.
infallible
infallibles
more infallible
most infallible
infallible
will be infallible
has been infallible
is being infallible
infallible
infallible
to be infallible
being infallible
infallible