to the extent unnecessary additional info., superfluousto the extent useless, otiose
That is the correct spelling of the word, which means that something is of no use.
In Britain, 'Duff' means that something is rubbish or useless. For example 'The Prime Minister is totally duff!' Don't get this confused with 'buff', which means 'sexy'.
You spelled it right -- completely means totally, fully, wholly.
solid gold space rockets. Not only are they incredibly expensive, they are totally useless as they dissolve on exit, killing all on board.
It can be the abbreviation for "apartment" or it can be a word that means appropriate or correct. "Stubborn" was an apt description for him; he was totally unwilling to listen to reason.
The Hindi word "bekaar" means "useless" or "waste."
If I recall it means "thin hammer." basically it means useless
The word trivial means "useless". So a trivial set would be a useless set.
The word "entire" means including all parts, or complete.
data means information useful or useless for us
It means useless.
A 7 letter word meaning good for nothing is useless.