Dictionary & Thesaurus

without doubt

1.	(adverb) admittedly; "to be sure, he is no Einstein"
	Synonyms: no doubt, to be sure

2.	(adverb) reinforces an assertion, as in "It's expensive all right"
	Synonyms: all right, alright

3.	(adverb) with certainty; "it's undoubtedly very beautiful"
	Synonyms: beyond any doubt, beyond question, doubtless, undoubtedly