Answer:

rigor

Answer	Crossword Clue
RIGOR	Severity
RIGOR	Sterness
RIGOR	Attention to detail

RIGOR	Austerity
RIGOR	Discipline
RIGOR	Laxity's opposite
RIGOR	Exactitude
RIGOR	Strictness
RIGOR	Hardship
RIGOR	Inflexibility
RIGOR	Harshness

RIGOR	Lack of tolerance
RIGOR	Toughness
RIGOR	Extreme hardship
RIGOR	Use of tough standards
RIGOR	Quality of a good math proof
RIGOR	Extreme severity
RIGOR	Scrupulous accuracy
RIGOR	Stiffness

RIGOR	Exactness
RIGOR	Severity, as of rules
RIGOR	Intellectual precision
RIGOR	No-nonsense nature
RIGOR	Stringency
RIGOR	... mortis
RIGOR	Austerity.
RIGOR	Inflexibility.

RIGOR	Harshness.
RIGOR	Severity.
RIGOR	Inclemency.
RIGOR	Hardship.
RIGOR	Strictness.
RIGOR	Sternness.
RIGOR	Stiffness.
RIGOR	Strict precision.

RIGOR	Difficulty.
RIGOR	Martinet's quality
RIGOR	Martinet's imposition
RIGOR	Strict precision
RIGOR	Difficulty

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.