Vocabulary for IELTS Academic (Band 5) - Complexity

Here, you will learn some English words related to Complexity that are necessary for the Academic IELTS exam.

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complicated [adjective]

involving many different parts or elements that make something difficult to understand or deal with

Ex: The algorithm used in the program was complicated , with multiple nested functions .

complex [adjective]

not easy to understand or analyze

Ex: The artwork 's meaning was complex , open to interpretation and layered with symbolism .

confusing [adjective]

not clear or easily understood

Ex: His explanation of the scientific theory was confusing , leaving the students with more questions than answers .

difficult [adjective]

needing a lot of work or skill to do, understand, or deal with

Ex: Memorizing multiplication tables can be difficult for elementary school students .

puzzling [adjective]

hard to understand or explain

Ex: The detective faced a puzzling case with few clues to follow .

simple [adjective]

not involving difficulty in doing or understanding

Ex: The task was simple to complete ; it did n't require any specialized skills .

easy [adjective]

needing little skill or effort to do or understand

Ex: Finding the location was easy with the clear directions provided .

straightforward [adjective]

easy to comprehend or perform without any difficulties

Ex: The process for renewing your driver 's license is straightforward ; you just need to fill out a form and pay a fee .

uncomplicated [adjective]

clear and easy to understand

basic [adjective]

having the simplest form without extra complexity

Ex: The basic approach to solving the problem involved breaking it down into smaller steps .

elementary [adjective]

not difficult to understand

Ex: His explanation was so elementary that even a child could understand .

obvious [adjective]

noticeable and easily understood

Ex: The reason for her absence was obvious ; she had called in sick earlier .

clear [adjective]

easy to understand

Ex: The map was clear , showing all the important landmarks and routes .

understandable [adjective]

able to be grasped mentally without difficulty

Ex: The professor 's lecture was clear and understandable for all the students .

comprehensible [adjective]

clear in meaning or expression

Ex: The teacher used simple language and examples to make the complex topic more comprehensible to her students .

transparent [adjective]

clear enough to be easily understood

Ex: The report was transparent in its findings , leaving no room for misinterpretation .

Vocabulary for IELTS Academic (Band 5)
Size and Scale	Dimensions	Weight and Steadiness	Increase in Amount
Decrease in Amount	High Intensity	Low Intensity	Space and Area
Shapes	Speed	Significance	Influence and Strength
Uniqueness	Complexity	Value	Quality
Challenges	Wealth and Success	Poverty and Failure	Appearance
Age	Body Shape	Wellness	Textures
Intelligence	Positive Human Traits	Negative Human Traits	Moral Traits
Emotional Responses	Emotional States	Social Behaviours	Tastes and Smells
Sounds	Temperature	Probability	Relational Actions
Body Language and Gestures	Postures and Positions	Opinions	Thoughts and Decisions
Knowledge and Information	Encouragement and Discouragement	Request and Suggestion	Regret and Sadness
Respect and Approval	Attempt and Prevention	Physical Actions and Reactions	Movements
Commanding and Giving Permissions	Engaging in Verbal Communication	Understanding and Learning	Perceiving The Senses
Resting and Relaxing	Touching and Holding	Eating and Drinking	Preparing Food
Changing and Forming	Organising and Collecting	Creating and Producing	Science
Education	Research	Astronomoy	Physics
Biology	Chemistry	Geology	Psychology
Mathematics	Graphs and Figures	Geometry	Environment
Energy and Power	Landscapes and Geography	Technology	Computer
Internet	Manufacture and Industry	History	Religion
Culture and Custom	Language and Grammar	Arts	Music
Film and Theatre	Literature	Architecture	Marketing
Finance	Management	Medicine	Sickness and Symptoms
Law	Crime	Punishment	Politics
War	Measurement	Positive Emotions	Negative Emotions
Animals	Weather	Food and Drinks	Travel and Tourism
Pollution	Migration	Disasters	Materials
Adverbs of Manner	Adverbs of Comment	Adverbs of Certainty	Adverbs of Frequency
Adverbs of Time	Adverbs of Place	Adverbs of Degree	Adverbs of Emphasis
Adverbs of Purpose and Intention	Conjunctive Adverbs