the casual eye (adverb) superficially: lightly; without care
Sinonime: apparently, at first glance, carelessly, casually, externally, extraneously, flimsily, frivolously,
hastily, ignorantly, not profoundly, not thoroughly, on the surface, once over lightly,
ostensibly, outwardly, partially, skim, to the casual eye
Antonime: carefully,
deeply,
thoroughly