steel oneself for vs steel oneself against

steel oneself for and steel oneself against both are verbs.

Word	Noun	Adjective	Verb	Adverb
steel oneself for	No	No	Yes	No
steel oneself against	No	No	Yes	No

As verbs, steel oneself for and steel oneself against are synonyms defined as:

steel oneself for and steel oneself against: prepare mentally or emotionally for something unpleasant

Other synonyms of steel oneself for include brace oneself for, prepare for.

steel oneself for (verb)	steel oneself against (verb)
prepare mentally or emotionally for something unpleasant	prepare mentally or emotionally for something unpleasant