Full of earnestness; characterized by sincere and intense conviction or determination; deeply serious and genuine.
From 'earnest' (from Old High German 'ernst,' meaning serious) + '-ful' (suffix meaning full of). Intensifies the meaning of earnest.
While 'earnest' alone is sincere, adding '-full' creates an almost archaic-sounding emphasis—it's the kind of word Victorian literature loved for describing passionate idealists.
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