Rudimentary (adj)
roo-dim-en-ta-ree
pertaining to rudiments or first principles / Undeveloped or vestigial.
1540–50; Latin rudīmentum early training, first experience, initial stage, equivalent to rudi(s) unformed, rough (see rude) + -mentum-ment (-ī- for -i- after verbal derivatives)
Example sentences
“The cave houses were anything but the rudimentary caveman dwellings we were expecting, and were in fact quite sophisticated.”