RichThesaurus
simplex
simplex
synonyms
underlying
primo
plain
primitive
duck soup
introductory
meat and potatoes
straightforward
fundamental
elementary
initial
foundational
easy
uncomplex
essential
preliminary
substratal
uncomplicated
prefatory
elemental
clear
ABCs
simplified
rudimentary
child’s play
primary
facile
monoplex
simplest
basal
abecedarian
original
beginning
unidirected
monodirectional
incomplex
naked
monovalent
free
easygoing
bald
rigid
univocal
hard
seedy
whole
single
noncomplex
unembroidered
fond
more synonyms
simplex
antonyms
compound
difficult
secondary
complicated
complex
hard
abstruse
intricate
involved
advanced