We found 16 dictionaries that define the word second thought:

General (15 matching dictionaries)

1. second thought: Merriam-Webster
2. second thought: Oxford Learner's Dictionaries
3. second thought: American Heritage Dictionary of the English Language
4. second thought: Collins English Dictionary
5. second thought: Vocabulary.com
6. second thought: Wordnik
7. second thought: Cambridge Advanced Learner's Dictionary
8. second thought: Wiktionary
9. second thought: The Wordsmyth English Dictionary-Thesaurus
10. second thought: Infoplease Dictionary
11. second-thought, second thought: Dictionary.com
12. second thought: Rhymezone
13. second thought: FreeDictionary.org
14. second thought: Mnemonic Dictionary
15. second thought: TheFreeDictionary.com

Miscellaneous (1 matching dictionary)

16. second thought: Idioms

(Note: See second_thoughts as well.)

Definitions from WordNet (second thought) ▸ noun:  thinking again about a choice previously made ("He had second thoughts about his purchase") Opposite: impulse, instinct, intuition, initial reaction Phrases: on second thought, without a second thought, without second thought, a second thought, more... ▸ Words similar to second thought ▸ Usage examples for second thought ▸ Idioms related to second thought ▸ Wikipedia articles (New!) ▸ Words that often appear near second thought ▸ Rhymes of second thought ▸ Invented words related to second thought