boundless
Describes something that is seemingly infinite or without limits, often used to characterize abstract qualities such as energy, enthusiasm, or potential. It suggests a vastness that cannot be measured or contained by physical or conceptual boundaries.
例文
3 / 5The children spent the afternoon running around the garden with boundless energy.
The kids played in the yard with a supply of energy that never seemed to run out.
We owe a debt of boundless gratitude to the volunteers who worked tirelessly during the flood.
We feel an immeasurable sense of thankfulness toward the people who helped during the natural disaster.
My appetite for spicy food is pretty much boundless; I can never get enough.
I have an unlimited craving for hot food and I always want more.
語族
覚え方のコツ
Think of the word 'bound' as a fence or a boundary. The suffix '-less' means without. So, 'boundless' is something without a fence—it can go anywhere!
クイックテスト
The young entrepreneur's _______ optimism helped her overcome every obstacle in her path.
正解！
正解は： boundless
例文
The children spent the afternoon running around the garden with boundless energy.
everydayThe kids played in the yard with a supply of energy that never seemed to run out.
We owe a debt of boundless gratitude to the volunteers who worked tirelessly during the flood.
formalWe feel an immeasurable sense of thankfulness toward the people who helped during the natural disaster.
My appetite for spicy food is pretty much boundless; I can never get enough.
informalI have an unlimited craving for hot food and I always want more.
Theoretical physics often deals with the boundless nature of the universe and its expansion.
academicScientific studies frequently explore how the universe is infinite and continues to grow without end.
The CEO believes the new tech sector offers boundless opportunities for investors.
businessThe company leader thinks this new market provides limitless chances for people to make money.
語族
よく使う組み合わせ
よく使うフレーズ
boundless horizon
a view of the sky and land that seems to go on forever
boundless joy
a feeling of great happiness that has no end
boundless ambition
a desire to succeed that is not restrained by anything
よく混同される語
'Bound' usually means tied or restricted, whereas 'boundless' means the exact opposite—having no restrictions.
While similar, 'endless' is often used for time or physical length, while 'boundless' is preferred for abstract qualities like potential or spirit.
使い方のコツ
Use 'boundless' primarily when you want to praise someone's positive qualities, like their energy or optimism. It sounds more poetic and literary than 'limitless' or 'infinite'.
よくある間違い
Learners sometimes use 'boundless' to describe a very long physical distance, such as a road; 'endless' or 'vast' is usually a better fit for physical objects.
覚え方のコツ
Think of the word 'bound' as a fence or a boundary. The suffix '-less' means without. So, 'boundless' is something without a fence—it can go anywhere!
語源
Derived from the Middle English word 'bounde' (meaning a limit or landmark) combined with the Old English suffix '-leas' (meaning without).
文法パターン
文化的な背景
In English literature, 'boundless' is frequently used in Romantic poetry to describe the awe-inspiring scale of nature and the human spirit.
クイックテスト
The young entrepreneur's _______ optimism helped her overcome every obstacle in her path.
正解！
正解は： boundless
関連語彙
関連単語
to
A1Used to indicate the place, person, or thing that someone or something moves toward. It can also mark the recipient of an action or the limit of a range.
and
A1A primary conjunction used to connect words, phrases, or clauses that are grammatically equal. It indicates addition, a sequence of events, or a relationship between two things.
a
A1A word used before a singular noun that is not specific or is being mentioned for the first time. It is used only before words that begin with a consonant sound to indicate one of something.
that
A1This word is a demonstrative pronoun used to indicate a specific person, object, or idea that is further away in space or time from the speaker. It is also used to refer back to something that has already been mentioned or to introduce a clause that identifies something.
I
A1The pronoun 'I' is used by a speaker or writer to refer to themselves as the subject of a verb. It is the first-person singular subject pronoun in English and is always capitalized regardless of its position in a sentence.
for
A1Used to show who is intended to have or use something, or to explain the purpose or reason for an action. It is also frequently used to indicate a specific duration of time.
not
A1A function word used to express negation or denial. It is primarily used to make a sentence or phrase negative, often following an auxiliary verb or the verb 'to be'.
with
A1A preposition used to indicate that people or things are together, in the same place, or performing an action together. It can also describe the instrument used to perform an action or a characteristic that someone or something has.
he
A1A pronoun used to refer to a male person or animal that has already been mentioned or is easily identified. It functions as the subject of a sentence.
you
A1Used to refer to the person or people that the speaker is addressing. It is the second-person pronoun used for both singular and plural subjects and objects.
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