strict, rigorous, tough, rigid, firm, stringent

tough, hard, strict, stringent, severe, stern

accurate, careful, precise, delicate, exact, strict

harsh, cruel, severe, hard, tough, strict

prim, strict, rigid, Puritanical, austere, severe

tight, narrow, cramped, strict, parochial, incommodious

tough, harsh, hard, rough, severe, strict

hard, solid, firm, stiff, concrete, strict