what does vigor mean

The word “vigor” (or “vigour” in British spelling) means physical or mental strength, energy, and forcefulness — basically, the quality of being strong, lively, and full of life and determination.

Core meaning

At its heart, “vigor” describes:

• Strength and energy (especially bodily or mental):
  • “She argued her case with great vigor.”
  • “The plant grew with surprising vigor.”

• Enthusiasm and force in action :
  • “He responded with renewed vigor.”
  • “They campaigned with youthful vigor and enthusiasm.”

• Intensity of effort or effect :
  • “The team attacks with relentless vigor.”
  • “The law was abolished, so it no longer has legal vigor.”

So, someone with vigor isn’t just strong — they’re active, forceful, and full of life, whether in movement, work, debate, or even the growth of a plant.

How it’s used (with examples)

In everyday English, “vigor” often appears in phrases like:

• “With vigor” = strongly, energetically, forcefully:
  • “She defended her beliefs with great vigor.”

* “The activists protested with renewed _vigor_.”

• “Youthful vigor” / “renewed vigor” = fresh energy and strength:
  • “After the nap, he returned to work with fresh vigor.”

• “Vigor and enthusiasm” / “vim and vigor” = a common pairing meaning lively energy and spirit (often used humorously or in old-fashioned style).

• “Legal vigor” = the active force or validity of a law or contract (more formal/legal use).

Synonyms & related words

Close synonyms for “vigor” include:

• energy, strength, force, vitality, stamina
• enthusiasm, ardor, zeal, drive
• liveliness, pep, oomph, punch.

Antonyms (opposites) would be:

• weakness, lethargy, exhaustion, sluggishness, apathy.

In plants and nature

Outside of people, “vigor” is often used to describe how strongly and healthily something grows, especially plants:

• “The rose has a lot of vigor — it’s spreading fast and blooming heavily.”
• “This variety is known for its disease resistance and growth vigor.”.

So in gardening, “vigorous growth” means the plant is strong, healthy, and growing fast.

“Vigor” vs “vigorous”

“Vigor” is the noun; “vigorous” is the adjective form:

• Vigor (noun): “She spoke with great vigor.”
• Vigorous (adj.): “She gave a vigorous defense of her position.”

“Vigorous” often describes:

• Exercise: “a vigorous workout”
• Debate: “a vigorous discussion”
• Growth: “a vigorous plant”.

TL;DR:
“Vigor” means strength, energy, and forceful liveliness — whether in a person’s actions, a plant’s growth, or even the active force of a law. It’s about being strong, active, and full of life, not just in body but in spirit and effort.