虑

to think over / to consider / anxiety

heart / mind / intention / center / core / CL:顆|颗[ke1],個|个[ge4]

stripes of a tiger / "tiger" radical in Chinese characters (Kangxi radical 141)

to worry / anxiety (about)

carefree and without worries (idiom)

to plot actively (idiom) / scheming / calculating

to think sth through / to consider carefully

to worry about

worrisome

security consideration

generalized anxiety disorder (GAD)

(feel) anxiety / concern

lit. a wise person reflecting a thousand times can still make a mistake (idiom); fig. nobody is infallible

at dawn, not sure of lasting to evening (idiom); precarious state / imminent crisis / living from hand to mouth

man of Qǐ fears the sky falling (idiom); groundless fears

to exhaust one's thoughts and ingenuity (idiom); to think sth through thoroughly / to rack one's brains / to leave no stone unturned

(idiom) carefree / untroubled

to give no cause for anxiety; nothing to worry about

to give no cause for anxiety / nothing to worry about

He who gives no thought to far-flung problems soon finds suffering nearby (idiom, from Analects). / Smug concentration on the here and now will lead to future sorrow.

to give sufficient consideration to

reflect a thousand times and you can still make a mistake (idiom); to err is human

a thousand tries leads to one success (idiom, humble expr.); Even without any notable ability on my part, I may still get it right sometimes by good luck.