scrutinize vs size up

scrutinize and size up both are verbs.

Word	Noun	Adjective	Verb	Adverb
scrutinize	No	No	Yes	No
size up	No	No	Yes	No

As verbs, scrutinize and size up are synonyms defined as:

scrutinize and size up: to look at critically or searchingly, or in minute detail

Other synonyms of scrutinize include scrutinise, take stock.

scrutinize (verb)	size up (verb)
examine carefully for accuracy with the intent of verification	to look at critically or searchingly, or in minute detail
to look at critically or searchingly, or in minute detail