Words similar to obligatory

Example sentences for: obligatory

How can you use “obligatory” in a sentence? Here are some example sentences to help you improve your vocabulary:

It offers good opportunities for sailing and windsurfing (again, wetsuits obligatory).
At the tip of the peninsula, Forillon National Park offers great facilities for fishing, boat cruises, skin-diving (wetsuits are obligatory), and hiking.
I don't think that such punctilio is really morally or professionally obligatory.
Root-knot nematode species, including Meloidogyne incognita , are the most important of the plant parasitic nematodes, infecting almost all cultivated plants, and are responsible for billions of dollars in crop losses annually [ 1 2 ] . They are obligatory sedentary endoparasites with a 1- to 2-month life cycle.
These data suggest that polyadenylation of L1 transcripts by poly(A) polymerase may not be obligatory in the formation of standard L1 insertions.