second thought: meaning, definition, pronunciation and examples
B2Informal to Semi-formal
Quick answer
What does “second thought” mean?
A moment of reconsideration or doubt about a decision already made.
Audio
Pronunciation
Definition
Meaning and Definition
A moment of reconsideration or doubt about a decision already made.
The act of pausing to reconsider the wisdom or consequence of an action; hesitation or reservation.
Dialectal Variation
British vs American Usage
Differences
No significant grammatical differences. The idiom is identical in structure and meaning. Minor preference variations in collocation frequency exist.
Connotations
Identical connotations of hesitation or reconsideration.
Frequency
Slightly more frequent in American English in casual speech, but common in both varieties.
Grammar
How to Use “second thought” in a Sentence
V + without + a second thoughthave + second thoughtsgive + NP + a second thoughton + second thought + SVocabulary
Collocations
Usage
Meaning in Context
Business
Used when reconsidering a deal, strategy, or hire. 'The investors are having second thoughts about the merger.'
Academic
Rare in formal writing; appears in reported speech or philosophical discussions on decision-making.
Everyday
Very common for personal decisions, purchases, or plans. 'I bought the coat without a second thought.'
Technical
Not applicable in most technical contexts.
Vocabulary
Synonyms of “second thought”
Strong
Neutral
Weak
Vocabulary
Antonyms of “second thought”
Watch out
Common Mistakes When Using “second thought”
- Using 'second thoughts' (plural) with 'a' (e.g., *'a second thoughts').
- Using it in positive constructions to mean careful consideration (e.g., *'I chose it with a second thought').
FAQ
Frequently Asked Questions
No. In the phrase 'without a second thought' and 'on second thought', it's singular. 'Second thoughts' (plural) is used with 'have' or 'give someone'.
Yes, 'on second thought' (AmE) and 'on second thoughts' (BrE) are both correct and mean the same thing, though the singular is more common in American English.
A 'second thought' is a reconsideration of a primary decision. An 'afterthought' is something added later, often minor, that wasn't part of the original plan.
It is neutral to informal. In very formal writing, alternatives like 'reconsideration' or 'reservations' might be preferred.
A moment of reconsideration or doubt about a decision already made.
Second thought: in British English it is pronounced /ˌsek.ənd ˈθɔːt/, and in American English it is pronounced /ˌsek.ənd ˈθɑːt/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “On second thought, ...”
- “Without a second thought”
- “Not give it a second thought”
Learning
Memory Aids
Mnemonic
Think of the number '2'. Your FIRST thought is decision #1. Your SECOND thought is decision #2, which questions #1.
Conceptual Metaphor
THINKING IS COUNTING (first, second) / RECONSIDERATION IS A SECOND CHANCE.
Practice
Quiz
Which sentence uses 'second thought' correctly?