Admittedly:
— To be sure, he is no Einstein.

synonyms: no doubt, without doubt.

Roget 488: yes, yea, ay, aye, true; good; well; very well, very true; well and good; granted; even so, just so; to be sure, 'thou hast said'," you said it, you said a mouthful; truly, exactly, precisely, that's just it, indeed, certainly, you bet, certes [Lat.], ex concesso [Lat.]; of course, unquestionably, assuredly, no doubt, doubtless; naturally, natch.    be it so; so be it, so let it be; amen; willingly etc. 602.    affirmatively, in the affirmative.    OK, all right, might as well, why not;? with one consent, with one voice, with one accord; unanimously, una voce, by common consent, in chorus, to a man; nem.    con, nemine contradicente [Lat.]; nemine dissentiente [Lat.]; without a dissentient voice; as one man, one and all, on all hands.    ... show more

Roget 474: certainly etc. adj.; for certain, certes [Lat.], sure, no doubt, doubtless, and no mistake, flagrante delicto [Lat.], sure enough, to be sure, of course, as a matter of course, a coup sur, to a certainty; in truth etc. (truly) 494; at any rate, at all events; without fail; coute que coute [Fr.], coute qu'il coute [Fr.]; whatever may happen, if the worst come to the worst; come what may, happen what may, come what will; sink or swim; rain or shine.    ... show more