rudimentary

adj, noun — 3 senses

rudimentary

adj

US /ˌɹuːdɪˈmɛntəɹi/

Etymology From rudiment + -ary.

1

Of or relating to one or more rudiments.

I have only a rudimentary grasp of chemistry.

2

Basic; minimal; with less than, or only the minimum, necessary.

His grasp of rudimentary English allowed him at least to do the shopping.
His rudimentary driving skills meant that he was a danger on the road.

2 more examples

Using a tractor fan, shock absorbers, PVC pipes, a bicycle frame and anything else he could lay his hands on, he then built a rudimentary wooden tower, plonked his home-made generator on the top, and eventually got one, and then four bulbs to light up.2009 October 2, John Vidal, “'Tilting at windmills: the boy who harnessed the wind'”, in The Guardian, →ISSN:
Safdar, in his rudimentary ambulance, has been at the frontline of the shifting conflicts consuming his city, placing himself at huge personal risk for very little money.2017 April 6, Samira Shackle, “On the frontline with Karachi’s ambulance drivers”, in The Guardian:

Derived terms: rudimentarily, rudimentariness
Related terms: rudiment

rudimentary

noun

Etymology From rudiment + -ary.

1

Biology, Natural sciences, Zoology Plural normally One of the rudimentary mammae of boars.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.