Synonyms of 'on the face of it'
▷ See face
to all appearances
On the face of it, that seems to make sense.
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You use apparently to refer to something that seems to be true, although you are not sure whether it is or not.
The deterioration has been caused by an apparently endless recession.
You use outwardly to indicate the feelings or qualities that a person or situation may appear to have, rather than the ones that they actually have.
Outwardly he showed not the faintest sign of concern.
Thesaurus for on the face of it from the Collins English Thesaurus
You say on the face of it when you are describing how something seems when it is first considered , in order to suggest that people's opinion may change when they know or think more about the subject.