to throw off keel - Glite Dictionary

Examples

The abrupt cancellation threw everyone off keel and created confusion across departments.
A sudden snowstorm threw the travel plans off keel for the entire team.
Don't throw off keel your focus!
The sudden news threw off keel his plans for the weekend.
The unexpected changes in the project threw her off keel, making her question her abilities.
His critical feedback threw me off keel and made me rethink my approach to the task.
The news of the layoffs threw the whole team off keel, leaving everyone anxious and uncertain.

Synonyms

to throw

vsto throw off keel

321 7.8

To make someone feel confused or unsure

causes imbalance and disorientation rather than only confusion

to throw off

vsto throw off keel

31 4.8

To make someone's plans or schedule not work as expected

affects balance and mental state rather than plans or schedules

to throw off balance

vsto throw off keel

4 5.4

To make someone feel confused or unsure after a sudden change

causes imbalance without depending on a sudden event

to make head spin

vsto throw off keel

Informal

3 7.4

To cause someone to feel confused or overwhelmed by too much information

causes emotional and mental imbalance rather than mere information overload

to unbalance

vsto throw off keel

1 7.0

To make a person mentally unstable or unable to think clearly

means milder disorientation and unsettlement not full loss of sanity

to untune

vsto throw off keel

Archaic

8.9

To make someone lose their calm and feel upset

causes broader imbalance and disorientation rather than only loss of composure

to overbalance

vsto throw off keel

6.7

To make something lose balance or become unsteady

focuses on emotional or mental unsettlement rather than physical imbalance

Antonyms

to ground

27 3.4

To put something into the soil so it stays stable

How Unsettled

to overwhelm

164 4.4

to throw off keel

8.1

to unsettle

7 4.9

to disorient

22 5.2

Surface Forms

throw off keel infinitive

throwing off keel present participle

throws off keel third person singular

threw off keel past

thrown off keel past participle

Morphology

throw + off + keel

The phrase combines 'throw off' (disturb/upset) with 'keel' (the ship element that provides balance), so the intended sense of causing someone to become unbalanced or unsettled is inferable via a ship-balance metaphor. However, 'keel' is low-frequency and the metaphorical mapping to emotional/mental stability is indirect and not a common English idiom, so a B1 learner would only partially deduce the meaning without prior exposure.

Etymology

Throw off keel comes from boats: the keel is the long piece under a ship that keeps it steady, so when a wave throws a boat off its keel the boat tips and loses balance. That's why the phrase means 'to make someone feel unsteady or confused'.