意料之外
yì liào zhī wài · HSK 7
unexpected
🎁 意料 = expect/anticipate + 之外 = outside; what falls outside what you expected
料 — rice 米 + dipper 斗
料 combines 米 (rice/grain) with 斗 (a measuring dipper), depicting the act of measuring out grain. From this concrete sense it extended to 'to measure, estimate, anticipate' and to 'materials' (things measured out for use), as in 材料 'materials' and 预料 'to anticipate'.
之 — foot 止 above ground line 一
Originally a pictograph of a foot (止) stepping forward from a baseline, meaning 'to go' or 'to proceed'. Over time the concrete 'going' sense faded, and 之 was borrowed as a grammatical particle marking possession ('of') or as a pronoun ('it'), which became its dominant use in Classical Chinese.
外 — evening 夕 + divination 卜
Originally a compound of 夕 (evening) and 卜 (divination). Ancient Chinese divinations were performed in the morning; doing them at evening (夕) was considered irregular or 'outside' the norm. From this sense of deviation, 外 came to mean 'outside' or 'external'.