Skip to main content
thorn in someone's side

thorn in someone's side

19 6.3
A person or thing that keeps causing trouble for someone
  • idiom
  • Informal
: espina en el costado
  • I am officially upgrading the Dukes... from fly in my ointment to thorn in my side.
  • a big thorn in my side
  • remain a thorn in my side
  • become a thorn in my side

Examples

Synonyms

pain
vsthorn in someone's side
  • Informal
258 3.0

Something that causes annoyance or trouble

is focused on repeated minor troubles rather than severe suffering
pain in the ass
vsthorn in someone's side
  • Offensive
124 9.2

A person or thing that is very annoying and difficult to deal with

is more neutral in tone and not always rude
nuisance
vsthorn in someone's side
62 3.6

A person or thing that annoys others and causes trouble

is used for repeated irritation more than occasional trouble
bother
vsthorn in someone's side
43 2.1

A thing that causes trouble or annoyance

is focused on repeated annoyance rather than an isolated problem
thorn
vsthorn in someone's side
  • Informal
35 7.2

A person or thing that often causes trouble

is the single word form rather than the longer idiom
pest
vsthorn in someone's side
  • Offensive
32 2.1

A person who keeps bothering others

also applies to recurring problems caused by things or situations
annoyance
vsthorn in someone's side
25 3.2

A person or thing that bothers you

is the common label for repeated trouble rather than a one time issue
pain in the neck
vsthorn in someone's side
  • Informal
12 4.1

A person or thing that is annoying and causes trouble

is used for ongoing irritation but not necessarily severe or destructive
bane of
vsthorn in someone's side
11 7.4

A thing that causes a lot of trouble for someone

is milder, used for frequent irritations rather than severe affliction
albatross
vsthorn in someone's side
  • Informal
10 8.4

A heavy problem that stays and keeps causing worry or trouble

is lighter, meaning repeated irritation rather than heavy lifelong burden
royal pain
vsthorn in someone's side
  • Offensive
9 8.0

A very annoying person or thing that causes trouble

is less intense, referring to repeated trouble without extreme emphasis
bad penny
vsthorn in someone's side
  • Informal
3 7.7

Something unwanted that keeps coming back

focuses on repeated arrival rather than active causing of trouble
that bugger
vsthorn in someone's side
  • Offensive
2 9.9

A person who is annoying or causes trouble

is more neutral and less rude when describing repeated annoyance
pain in the backside
vsthorn in someone's side
  • Informal
1 7.4

Something that causes trouble or makes people annoyed

is less strong than words that imply serious burden
thorn in the flesh
vsthorn in someone's side
  • Informal
1 7.0

Something that keeps causing you trouble or worry

is a more common phrase used broadly for repeated trouble
a burr in someone's saddle
vsthorn in someone's side
  • Archaic
1 8.6

A small problem that keeps annoying someone

is a broader term for recurring trouble in many situations
botherer
vsthorn in someone's side
1 6.5

A person who annoys others by repeating small actions

is the general term for repeated trouble, not only personal disturbance
blighter
vsthorn in someone's side
  • Offensive
1 9.5

A person who often annoys or causes trouble

is used more widely for repeating problems beyond people
pesterer
vsthorn in someone's side
6.1

A person who annoys others by asking too many questions or interrupting them

is broader, not limited to nagging or repeated requests
motherloving nuisance
vsthorn in someone's side
  • Offensive
9.9

A person who annoys others in a mostly playful way

is more literal and less playful when describing ongoing trouble
problemo
vsthorn in someone's side
  • Slang
9.6

A person who causes trouble and is hard to deal with

is more neutral and focuses on repeated annoyance rather than joking tone
bane of one's existence
vsthorn in someone's side
7.8

A person or thing that causes a lot of trouble and annoyance for someone

is less extreme, referring to repeated trouble rather than total misery

Antonyms

173 1.4

A good thing or situation that brings happiness

147 3.5

A useful quality, skill, or person that helps someone succeed

How Annoying

thorn in someone's side
  • Informal
19 6.3
nuisance
62 3.6
irritant
15 6.0
annoyance
25 3.2
bother
43 2.1

Surface Forms

Morphology

thorn + in + someone's + side

The literal image of a 'thorn' stuck 'in' someone's 'side' evokes persistent pain or irritation, so a B1 learner who knows the constituent words can plausibly infer that it refers to a recurring nuisance or annoyance. However, this is a metaphorical extension rather than a strictly compositional meaning, and the idiomatic force (a persistent troublemaker or problem) may not be fully predictable without prior exposure.

Etymology

Thorn in someone's side may come from the picture of a small thorn stuck in a person's side, causing constant pain and annoyance. That's why it now means 'a person or thing that repeatedly causes trouble or annoyance'.