If something is true by all appearances, from all appearances, or to all appearances, it seems from what you observe or know about it that it is true.

What does outward appearances mean?

pertaining to or being what is seen or apparent, as distinguished from the underlying nature, facts, etc.; pertaining to surface qualities only; superficial: outward appearances.

What does outwardly mean mean?

1a : on the outside : externally. b : toward the outside. 2 : in outward state, behavior, or appearance was outwardly friendly.