Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

definitely not

Absolutely not. A: "Now, be honest—have you ever stolen money from this company?" B: "Definitely not!"
See also: definitely, not
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

Definitely not!

 and Certainly not!
No, without any doubt at all. (Compare this with Absolutely not!) Bill: Will you lend me some money? Bob: No way! Definitely not! Bob: Have you ever stolen anything? Fred: Certainly not!
See also: Definitely
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
See also:
References in periodicals archive ?
There are definitely better ways to deal with this situation and it sounds like you and your departing boss should consider some of them.
We are still going to assist small businesses that want to start up, but definitely we are going to find ways to help existing businesses.
Here, insurance definitely provides value over a wide range of per-occurrence limits, because it costs less than even the lower bound of the self-insurance cost.
Shed Your Skin is definitely among the many popularly accessible ballets designed to keep the "dead" art form, with its set vocabulary, undeniably alive.
Lorna says: "The bra didn't move, and definitely wasn't loose, but it didn't feel painfully tight either.
We have definitely become a very performance-based culture.
Given the advantages, organizations definitely should factor Web appliances into their hardware upgrade plans.
Our pitchers throw as many change-ups as fastballs, but the fastball definitely remains their "out" pitch.
* Stop the decline at Mass: definitely, 41 percent; probably, 29 percent; doesn't matter, 16 percent; probably not, 6 percent; and definitely not, 4 percent.
Marge Green, vice president of the Document Management Industries Association, in Alexandria, Virginia (which, in a sign of the times, just changed its name from the National Business Forms Association), says electronic forms are "definitely a trend, although the growth of that market hasn't been as quick as some people had anticipated." According to Green, companies' internal forms - memos, orders and requisitions - have adopted easily to delivery through internal e-mail systems, but the more complicated external forms are taking longer to make the switch, and may never do so completely.
According to the survey results, which were released on Wednesday, 68 percent of Filipinos believe that allegations that police officers are involved in the illegal drug trade - with 29 percent of them tagging the accusation as 'definitely true' and 39 percent of them tagging it as 'probably true.' Only 5 percent said the accusation was 'definitely or probably not true,' while 26 percent said they were undecided.
The poll - carried out for the Western Mail and WalesOnline by Beaufort Research - shows that more than six in 10 adults across Wales (63%) are in favour of the M4 relief road being built, with just over a third overall (36%) saying it should "definitely be built" and another 27% saying it should "possibly be built".
CORRINE ELLIOT Definitely, schools need to educate the children not only more in exercise but also nutrition as I see loads of children walking to school eating crisps and snack foods like pasties-Greggs has a lot to answer !!
I definitely think they're rattled by it," said Johnson.
Across the region, 30 per cent of the companies claim to be definitely hiring, with an additional 25 per cent 'probably hiring' in the coming three months.