Elephantine is a related term of bulky.
As adjectives the difference between elephantine and bulky
is that elephantine is while bulky is being large in size, mass, or volume.
elephantine
English
Adjective
(
en adjective)
Of, pertaining to, or characteristic of elephants.
Very large.
Synonyms
* (of or relating to elephants) elephantic
* (very large) See also
Derived terms
* elephantine epoch
* elephantine leprosy
* elephantine tortoise
bulky
English
Adjective
(er)
Being large in size, mass, or volume.
Unwieldy
(bodybuilding) Having excess body mass, especially muscle.