strict / strikt/ • adj. demanding that rules concerning behavior are obeyed and observed: my father was very strict a strict upbringing. ∎ (of a rule or discipline) demanding total obedience or observance; rigidly enforced: civil servants are bound by strict rules on secrecy. ∎ (of a person) following rules or beliefs exactly: a strict vegetarian. ∎ exact in correspondence or adherence to something; not allowing or admitting deviation or relaxation: a strict interpretation of the law.DERIVATIVES: strict·ness n.