grievous

adjective

griev·​ous ˈgrē-vəs 

1

: causing or characterized by severe pain, suffering, or sorrow

a grievous wound

a grievous loss

2

: oppressive, onerous

grievous costs of war

3

: serious, grave

grievous fault

grievously adverb

grievousness noun

Synonyms of grievous

• harsh
• searing
• severe
• oppressive
• tough
• brutal
• rough
• hard
• cruel
• grim
• painful

Examples of grievous in a Sentence

the grievous cost of war

He took a foolish financial risk and suffered a grievous loss.

Recent Examples on the Web

The officers, masked and kitted out with military-grade armor and rifles, have faced down peaceful protesters and people who have threatened, obstructed or attacked them, with methods that are less deadly than guns but still inflict grievous injuries. —Kayla Hayempour, NBC news, 15 Feb. 2026

Somehow, my burgeoning overconfidence didn’t result in grievous injuries. —Andrew Fedorov, Travel + Leisure, 15 Feb. 2026

The jury was also unable to reach a verdict for charges faced by Corner, who was accused of causing grievous bodily harm with intent for hitting a police sergeant with a sledgehammer. —Grace Gilson, Sun Sentinel, 9 Feb. 2026

Papa Polizzi didn't take any grievous action against Farber, who ended up advancing Snooki to the fifth week of competition. —Ryan Coleman, Entertainment Weekly, 19 Jan. 2026

Word History

Etymology

Middle English grevous, greveus "oppressive, burdensome, injurious, severe (of sickness, wounds)," borrowed from Anglo-French grevous, grevus (continental Old French grevos), from gref "burden, hardship, grief" + -ous -ous

First Known Use

13th century, in the meaning defined at sense 1

Kids Definition

grievous

adjective

griev·​ous ˈgrē-vəs 

1

: heavy entry 1 sense 2, severe

the grievous cost of war

2

: causing pain, suffering, or sorrow

a grievous wound

3

: serious sense 4, grave

a grievous mistake

grievously adverb

grievousness noun