Menu
  • Today's Word
Deleterious

Deleterious

Deleterious


del-uh-TEER-ee-uhs

Definition

(adjective) Causing harm or damage, often in a subtle or unexpected way.

Example

Prolonged exposure to stress can have deleterious effects on your health.

Word Origin

Mid 17th century: from medieval Latin deleterius, from Greek dēlētērios ‘noxious’, from dēlētērios (related to destroy or *to hurt’).

Fun Fact

Deleterious is often used when something appears harmless but turns out to be damaging—like sugary drinks, misinformation, or prolonged noise. It’s not the loud crash—it’s the slow rot. You’ll find it in medical journals, legal decisions, and HR handbooks. It’s a favorite when talking about effects that are subtle, cumulative, and serious—without sounding dramatic.

Previous Words

Knotty

  • Today's Word
Knotty

Knotty

Knotty


NOT-ee

Definition

(adjective) Full of knots; or, figuratively, extremely difficult and complex, with no straightforward solution.

Example

The lawyers spent weeks untangling the knotty language buried deep in the old property deed.

Word Origin


From Old English cnotta (“knot”) + -ig (adjectival suffix), making the literal meaning simply “full of knots.” The figurative use — meaning intellectually complex or hard to resolve — developed naturally from the physical metaphor of a rope or thread so tangled it cannot be easily undone. The word has been used in its figurative sense since at least the 16th century.

Fun Fact

The original “knotty problem” in Western history may be the Gordian Knot — a legendarily complex knot tied to a cart in the city of Gordium, prophesied to be undone only by the future ruler of Asia. When Alexander the Great encountered it in 333 BCE, he reportedly cut right through it with his sword, giving us the phrase “cutting the Gordian Knot” — solving a knotty problem not by untangling it but by reframing the rules entirely. Modern business and political strategy still reference this move whenever someone sidesteps a complex problem by changing the terms of engagement altogether.

Knotty

Today's Word Knotty NOT-ee Definition (adjective) Full of knots; or,...

Read More

Harbinger

Today's Word Harbinger HAR-bin-jer Definition (noun) A person or thing...

Read More

Machination

Today's Word Machination mak-ih-NAY-shun Definition (noun) A crafty scheme or...

Read More

Descry

Today's Word Descry dih-SKRY Definition (verb) To catch sight of...

Read More

Sardonic

Today's Word Sardonic sar-DON-ik Definition (adjective) Grimly mocking or cynical;...

Read More
Menu
Copyright © 2026 Word Of The Day