Better and Jim-dandy

Better adjective - (comparative of `good') superior to another (of the same class or set or kind) in excellence or quality or desirability or suitability; more highly skilled than another.

Jim-dandy and better are semantically related. In some cases you can use "Jim-dandy" instead an adjective "Better".

Jim-dandy adjective - Of the very best kind.

Better and jim-dandy are semantically related. Sometimes you can use "Better" instead an adjective phrase "Jim-dandy".