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Definitions

train of thought

ADJECTIVE
unfrequented
Synonyms
WEAK
antithesis and synthesis argumentation coherence connection course of thought deduction deserted desolate dialectic forlorn godforsaken good sense induction inference linkage lonesome philosophy ratiocination rationale relationship sanity sense sound judgment syllogism syllogistics thesis
NOUN
association
Synonyms
STRONGEST
union
STRONG
bond combination concomitance concordance connotation correlation identification impression joining juxtaposition linkage mixing mixture pairing recollection relation remembrance tie
WEAK
linking lumping together
Antonyms
WEAK
aloneness antagonism disassociation disunion division isolation opposition rivalry seclusion separation solitude
NOUN
logic
Synonyms
STRONGEST
philosophy rationale sanity sense
STRONG
argumentation coherence connection deduction dialectic induction inference linkage ratiocination relationship syllogism thesis
WEAK
antithesis and synthesis course of thought good sense sound judgment syllogistics
Antonyms
WEAK
unreasonableness
NOUN
ratiocination
Synonyms
STRONG
argumentation coherence connection deduction dialectic induction inference linkage philosophy rationale rationality reason relationship sanity sense syllogism thesis
WEAK
antithesis and synthesis course of thought good sense sound judgment syllogistics
NOUN
rationality
Synonyms
STRONGEST
coherence good sense sanity
STRONG
argumentation connection deduction dialectic induction inference linkage philosophy ratiocination rationale reason relationship sense syllogism thesis
WEAK
antithesis and synthesis course of thought sound judgment syllogistics
NOUN
reasoning
Synonyms
STRONGEST
acumen analysis argument hypothesis inference interpretation premise proposition rationale thinking
STRONG
case cogitation concluding corollary deduction dialectics exposition generalization illation induction logistics proof ratiocination rationalizing reason syllogism thought
WEAK
apriority syllogization
Antonyms
STRONGEST
reality truth
WEAK
irrationality nonsense
NOUN
stream of consciousness
Synonyms
WEAK
apostrophe aside association of ideas chain of thought free association inner monologue interior monologue mind mapping word painting

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

I swear I had another example, but I lost my train of thought.

From The Wall Street Journal • Jan. 23, 2026

That moment when you suddenly can't remember the word for something really obvious, or you're mid-sentence and you lose your train of thought.

From BBC • Nov. 16, 2025

The train of thought derails as soon as the server at Smoke House presents a large silver tray, its display slices of cakes layered and its pies adorned with ice cream.

From Los Angeles Times • Oct. 31, 2025

The key failing of Walz was not a lost train of thought here or there, or his obvious jitters and nerves at the debate’s outset.

From Slate • Oct. 2, 2024

The attentions of the maitre d’hotel had opened up a train of thought, and as we drank our coffee I told him about Blaize, the dressmaker.

From "Rebecca" by Daphne du Maurier