undirectional

di·rec·tion·al

U u

Definitions of undirectional word

adjective undirectional of, relating to, or indicating direction in space. 1
adjective undirectional Radio. adapted for determining the direction of signals received, or for transmitting signals in a given direction: a directional antenna. 1
adjective undirectional of, relating to, or providing guidance or leadership. 1

before 1605

One of the 40% oldest English words

First recorded in 1605-15; direction + -al1

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

A common word. It’s meaning is known to most children of preschool age. About 74% of English native speakers know the meaning and use the word.

This word is included in each student's vocabulary. Most likely there is at least one movie with this word in the title.

This diagram is provided by Google Ngram Viewer

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