ill at ease vs uneasy

ill at ease and uneasy both are adjectives.

Word	Noun	Adjective	Verb	Adverb
ill at ease	No	Yes	No	No
uneasy	No	Yes	No	No

As adjectives, ill at ease and uneasy are synonyms defined as:

ill at ease and uneasy: socially uncomfortable; unsure and constrained in manner

Other synonyms of ill at ease include awkward.

ill at ease (adjective)	uneasy (adjective)
socially uncomfortable; unsure and constrained in manner	lacking a sense of security or affording no ease or reassurance
	lacking or not affording physical or mental rest
	causing or fraught with or showing anxiety
	relating to bodily unease that causes discomfort
	socially uncomfortable; unsure and constrained in manner