すぎる

1. 1Doing an action excessively, more than is appropriate (e.g., eating or drinking too much).Ex. 1
2. 2A state or quality being excessive ('too ~'), often causing an unwanted effect.Ex. 2

A neutral, everyday pattern used in speech and writing to say something exceeds a suitable degree. The て-form すぎて often links to a negative consequence, as in both examples. Unlike とても, which simply marks a high degree, すぎる conveys excess beyond what is acceptable. In casual speech, however, it is also used hyperbolically as enthusiastic praise (かわいすぎる).

• あまりにN3「あまりに」 is an adverb placed before adjectives, verbs, etc. (e.g. 「あまりに静かで」), carries a stronger sense of surprise or exasperation, and also appears in the pattern 「あまりの暑さに」. In the sense of "too," it is often interchangeable with 「すぎる」, and the two can also be used together.
• あまりN3「あまり」 follows 「名詞＋の」, 「〜さの」, 「な形＋な」, or a verb's dictionary or た-form; what comes before is usually an emotion or personal sensation, it must be followed by a resulting consequence, and it leans formal. 「すぎる」 simply states excess and is stylistically neutral.
• 極まる・極まりないN1「極まる・極まりない」 attach to the stem of a な-adjective (also as 「…なこと極まりない」) to mean "extremely…," are written in style, and often convey harsh criticism, whereas 「すぎる」 means exceeding an appropriate limit and attaches to verbs, adjectives, and more. The two are not readily interchangeable.
• ほどN3「ほど」 does not express excess; it conveys a high degree through a concrete or exaggerated example, can be positive or negative, and follows a verb's dictionary form, adjectives, etc. It can also attach to expressions of quantity to mean "about," a use 「すぎる」 does not have.
• 気味N3「気味」 indicates a slight tendency, mild in degree and soft in tone, while 「すぎる」 indicates clear excess. 「気味」 attaches only to a verb's ます-stem or to nouns, never to adjectives: 「太り気味」 means a bit on the heavy side, whereas 「太りすぎ」 means too fat.
• てたまらないN2「てたまらない」 attaches to the て-form and expresses intense emotions or physical sensations, including positive ones such as joy, while 「すぎる」 means exceeding an appropriate limit and usually implies a negative judgment. Both can be used with 「寒い」: the former stresses that the cold is unbearable, the latter that it is excessive.

あまりに is an adverb stressing an extreme degree and often co-occurs with すぎる, while あまり with a negative means 'not very'. ほど marks extent ('to the point that'), 気味 means only a slight tendency, 極まる・極まりない is a formal expression of the utmost degree, and てたまらない expresses an unbearable feeling or desire rather than an objective excess.