Question

invariable 【INVARIABLE】After dinner it was his invariable habit to take a nap for a while. 晚餐后小睡片刻是他不变的习惯。【重点词汇】invariable adj. 不变的 反: inconstant

Accepted Answer

[ɪn'verəriəbl] 
invariablenot liable to or capable of change
Use the adjective invariable to describe something that's unlikely to change, such as your invariable custom of eating deep-dish pizza every Saturday.
You can hear the word vary in invariable. Something that varies changes or is made up of different kinds of things. When you add the prefix in-, meaning "not," and the adjective suffix -able, you get an adjective to describe something that's not able to vary or change. Synonyms for invariable include constant, fixed, and immutable. Someone who's invariable in her habits may seem predictable and boring on the one hand, and steady and reliable on the other.
All forms of 'invariable' will appear on average once every 313 pages.invariabilityinvariablenessinvariablyinvarianceunvariednessinvariablevariabilityvariablenessvariablyinvariantvariancebivariatemultivariatecovariationunvariedvariednessco-varyvariablevariantvariatevariationvariedvaryvaryingunvarying

Front	invariable
Pron	[ɪn'verəriəbl]
Back	【INVARIABLE】 After dinner it was his invariable habit to take a nap for a while. 晚餐后小睡片刻是他不变的习惯。【重点词汇】 invariable adj. 不变的反: inconstant
Vocab	invariablenot liable to or capable of change Use the adjective invariable to describe something that's unlikely to change, such as your invariable custom of eating deep-dish pizza every Saturday. You can hear the word vary in invariable. Something that varies changes or is made up of different kinds of things. When you add the prefix in-, meaning "not," and the adjective suffix -able, you get an adjective to describe something that's not able to vary or change. Synonyms for invariable include constant, fixed, and immutable. Someone who's invariable in her habits may seem predictable and boring on the one hand, and steady and reliable on the other. All forms of 'invariable' will appear on average once every 313 pages. invariability invariableness invariably invariance unvariedness invariable variability variableness variably invariant variance bivariate multivariate covariation unvaried variedness co-vary variable variant variate variation varied vary varying unvarying

Invariable Adjective Describe Vary ɪn'verəriəbl Dinner Habit Nap