CEFR Level
to give strength, energy, or vitality to something or someone
"A short walk in the fresh air will invigorate you."
too powerful to be defeated or overcome
"The team seemed invincible after winning ten matches in a row."
done without will or conscious control
"He gave an involuntary shiver when he heard the loud noise."
not logical or reasonable; lacking clear thought
"His fear of the dark was completely irrational."
The quality of being illogical or unreasonable; lack of rational thought.
"His decision was driven by complete irrationality."
Impossible to deny or disprove
"The scientist provided irrefutable proof of the theory."
lack of regularity or consistency; a deviation from what is normal, expected, or orderly
"The audit revealed several financial irregularities in the company’s records."
the quality of not being connected to or important for a particular matter; lack of significance
"His long explanation only highlighted the irrelevance of the details to the main issue."
the state of being unrelated or unimportant to the matter at hand
"The judge dismissed the argument because of its irrelevancy to the case."
Too severe to be corrected or repaired.
"The earthquake caused irreparable damage to the village."
Impossible to control or restrain.
"She had an irrepressible urge to laugh during the speech."
without taking something into account; regardless of
"All students will be treated equally, irrespective of their background."
lack of responsibility or accountability; failure to act in a reliable or sensible way
"The accident was caused by his irresponsibility at work."
showing a lack of respect for people or things that are usually respected
"The comedian’s irreverent jokes offended some of the audience."
Not able to be undone, changed, or reversed.
"The damage caused by the fire was irreversible."
Harm or injury that cannot be undone or repaired.
"Climate change causes irreversible damage to ecosystems."
Not able to be revoked, changed, or undone.
"She made an irrevocable decision to leave the company."