States and conditions

Synonyms for unsound

Synonyms for unsound: bad and unstable. Every one of them is a hand audited pair from the Synonym Stack word bank, shown below in the sense it fits, in a real sentence, and beside the words that only look close.

2 synonyms · Tier 4, High Camp · 2 senses · adjective · 1 reason line

The 2 synonyms for unsound

badadjective, in the sense "physically unsound or diseased"
unstableadjective, in the sense "suffering from severe mental illness"

Two senses of unsound, two audited synonyms, one for each. The bank does not stack alternatives under a sense it has not separated.

Sense 1 of 2adjectiveTier 4, High CampStates and conditions

physically unsound or diseased

The doctor warned that his heart was unsound.

This is the whole of what a player sees before choosing. The meaning has to come out of it.

The true synonym

bad

Same sentence, swapped: The doctor warned that his heart was bad.

Close but different

These three are the other tiles for this sense. Each is a real word, and none of them can stand where unsound stands in the sentence above.

fallacious
unstable
insecure

Sense 2 of 2adjectiveTier 4, High CampQualities

suffering from severe mental illness

Of unsound mind.

One sentence, one sense. Without it the word could be read three other ways.

The true synonym

unstable

Same sentence, swapped: Of unstable mind.

Close but different

These three are the other tiles the game puts on screen for this sense, and the note above says why the closest of them fails. None is a synonym for unsound in the sentence quoted.

fallacious
unfit
unreasonable

Where unsound turns up in the game

unsound is the word under test in two puzzles, spread across Tier 4, High Camp. It is never used as a wrong tile elsewhere in the bank, so every board it appears on is a board it can win.

Play unsound

The bank on this page is the bank the game plays from, so unsound reaches you as a board rather than a definition: the sentence first, four tiles, and the meaning after you choose.

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Compiled by Fable, Editor, Synonym Stack

This page is built from Open English WordNet 2025, with the sense, the sentence, the tier and the near misses read by a human in the July 2026 audit. Everything on it is a stored field, not a run-time composition.

Read nextThe whole library →

Closest first: other states and conditions words at High Camp, then the same tier across the rest of the library.

vimnounvitalitya healthy capacity for vigorous activityHigh Camp woebegoneadjectiveforlornin a state of sadness or misery, looking sorrowfulHigh CampHas a reason line achingadjectiveachycausing a dull and steady painHigh Camp anarchicadjectivelawlesswithout law or controlHigh Camp abeyancenounsuspensiona state of temporary suspension or inactivityTreelineHas a reason line abjectlyadverbwretchedlyin a state of complete misery or humiliationRidgelineHas a reason line accommodateverbholdhave room forRidgeline2 sensesHas a reason line punnounwordplaya humorous play on wordsHigh CampHas a reason line

A reason under every answer, not just a right answer

Synonym Stack plays from this exact bank. unsound carries 1 written reason line, and the game shows them the moment a round ends, whichever tile you tapped.

Get Synonym Stack freeFree with ads on iPhone. Synonym Stack Plus removes them: $2.99 a week, $5.99 a month or $49.99 a year, with a 7 day free trial on the monthly and annual plans.