false

false /ˈfɑːls/ adjective
false
/ˈfɑːls/
adjective
Britannica Dictionary definition of FALSE
1 
: not real or genuine — used to say that something is not really what it seems to be
2 
: not true or accurate
especially : deliberately untrue : done or said to fool or deceive someone
3 
: based on mistaken ideas
5 
: sudden or deceptive in a threatening way

— falsely

adverb

— falseness

noun [noncount]