Modern French has a great diversity of markers of assessment (adverbs, prepositions, prepositional phrases...) among which figure the French adverb "facilement" ("On te donnerait facilement dix-huit ans" / "One would give you eighteen years easily"). The study undertaken on corpus made it possible to circumscribe this employment: (i) syntactically, "facilement", quantitative adverb, is intrapredicative component, its incidence relates to the quantified nominal group; (ii) semantically, the adverb directs the interpretation of the remainder of the utterance and its influence relates to the operation even of quantification: it announces a light going beyond of the reference given by the numeral; (iii) "facilement" its comment brings on a constant value (the numeral one) taken as term of reference and it translates the assessment attitude (the point of view) of the speaker and, more precisely, its increase with regard to what is known as. "Facilement" thus approaches the French modal adverbs ("évidemment", "apparemment"...) but is distinguished some by introducing the subjectivity which the evaluation constitutes on the alethic mode (the obvious, necessity, truth necessary values).