overcritical (adj.)

• captious
• censorious
• critic
• critical
• cynical
• demanding
• difficult
• exacting
• fastidious
• faultfinding
• finicky
• fussy
• hairsplitting
• harsh
• hypercritical
• hypersensitive
• nagging
• niggling
• overnice
• overrefined
• oversensitive
• picayune
• picky
• querulous
• severe
• small
• small-minded