Big Huge Thesaurus

rigour

noun

• cogency
• validity
• rigor
• asperity
• grimness
• hardship
• severity
• severeness
• rigorousness
• rigourousness
• harshness
• inclemency
• hardness
• stiffness
• believability
• credibility
• credibleness
• difficultness
• difficulty
• sternness
• strictness

sounds kind of like

• race car
• racer
• racker
• raiser
• rasher
• razor
• reassure
• recur
• regrow
• regur
• require
• rescuer
• ricer
• rigger
• rigor
• riser
• rocker
• rockery
• rocroi
• roguery
• rookery
• rosary
• rouser
• rugger
• rush hour
• rusher