rigour
12 synonyms for rigour, grouped by meaning and by how common each one is.
Noun — Great strictness or harshness in the way something is done or enforced.
Synonyms
Less common
Still standard English, but they carry more weight.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
Etymology
Came into English via Middle English rigour, from Anglo-Norman, from Old French rigor, from Latin rigor ("stiffness, rigidity, rigor, cold, harshness"), from rigere ("to be rigid"). Compare French rigueur.
Full origin of rigour →