As adjectives the difference between helpful and invaluable
is that helpful is furnishing help; giving aid; useful while invaluable is of great value; costly, precious, priceless.
helpful
English
Alternative forms
* helpfull (archaic)
Adjective
(
en adjective)
Furnishing help; giving aid; useful.
See also
* helpfully
* helpfulness
invaluable
English
Adjective
(
en adjective)
Of great value; costly, precious, priceless.
Very useful.
Beyond calculable or appraisable value; of inestimable worth