- Today's Word
Labile
LAY-byle
Definition
(adjective) Likely to change rapidly, especially emotionally or chemically.
Example
The labile patient’s mood shifted from joy to tears within minutes.
Fun Fact
Labile comes from the Latin labilis, meaning “slippery”—fitting for a word used to describe volatility. In neuroscience, labile emotions refer to intense mood swings, such as in bipolar disorder. In chemistry, it applies to bonds or compounds that shift states easily. The word is also increasingly used in pop psychology to describe people whose reactions change without warning.
(adjective) Sedate, respectable, and unadventurous; resistant to change or excitement; marked by settled, even dull, conventionality.
The new curator’s bold acquisitions rattled the museum’s staid board of trustees, who had grown comfortable with decades of cautious, predictable programming.